Barack Obama touched down in Glasgow last night ahead of his COP26 speech.
The former US President was pictured shortly after arriving at Glasgow Airport as he bids to play his part in tackling global climate change.
It's his first visit to Scotland since 2017 and he was spotted being driven away in a black car after earlier tweeting about his visit to the city.
He posted: "Five years ago, the Paris Agreement went into effect. Paris provided an important framework in the fight against climate change, but it wasn't enough.
Thousands of delegates and activists have also descended on the city in the last week, with 100,000 protestors bringing the city to a halt on Friday and Saturday demanding urgent action to tackle the climate emergency.
It is not know how long Mr Obama will remain in Scotland after his speech.
The NHS has renewed its push to drive up COVID-19 booster uptake, with people allowed from today to book their appointments a month before they are eligible.
They will only be able to receive it once they do become eligible, but the new measure could help them ensure they get inoculated as soon as their group is called.
It's part of the government's attempt to vaccinate as many people as possible ahead of winter, as most Britons head indoors to socialise - where the virus easily spreads - with flu also expected to surge.
Image:There are 'very real pressures on the NHS' according to its chief executive
Third shots are currently available to those aged over 50 and those deemed most at risk from coronavirus.
"For those not yet eligible, please help your parents, grandparents or vulnerable loved ones get their jabs - it could save their life," said Sajid Javid.
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"This truly is a national mission," he added.
"If we all come together and play our part, we can get through this challenging winter, avoid a return to restrictions and enjoy Christmas."
NHS chief executive Amanda Pritchard has warned the next few months will be tough.
"There is no doubt that the NHS is running hot and there are some very real pressures on health and social care," she said.
"We have had 14 times the number of people in hospital with COVID-19 than we saw this time last year. We also had a record number of A&E attendance and a record number of 999 calls," she added.
"As we look into winter, I think we're very clear this is going to be a difficult winter, and the things we encourage people to do is anything they can do to protect themselves, so that's the COVID-19 vaccine, it's the flu vaccination in particular."
She urged anyone who has not yet had a COVID-19 jab to do so, saying it was an "evergreen" offer.
More than a half a million adults have come forward for a first dose since the beginning of September, an average of around 9,000 a day over the past four-and-a-half months, according to the NHS.
But the call for vaccination isn't resonating with everyone.
A woman getting her second dose of the Pfizer jab at a southwest London vaccination centre told Sky News: "I've heard reports of people who had boosters and still got COVID-19 so [I'm] not really sure that it's really necessary - if my body needs to cope it will do well with two doses."
Some scientists say that this is down to the lack of clarity from authorities on how much of a threat COVID-19 still is.
"I think this is a very confusing public health message from the government," said Dr Chaand Nagpaul, chair of the BMA Council.
"Because on the one hand, it's concerned about the level of infections and is really urging everyone to have the vaccine, but on the other hand, it's telling people that they can actually mix freely, without any infection control measures, and they can actually mix without face coverings, without physical distancing, with crowding in indoor spaces."
With the NHS already under strain, fears are mounting about what this winter might bring.
Prime Minister Boris Johnson must apologise to the country for his handling of the Owen Paterson sleaze row, Sir Keir Starmer has said.
The Labour leader said Mr Johnson must also confirm that Mr Paterson, a former cabinet minister, will not be nominated for a peerage.
Ahead of an emergency Commons debate on standards at Westminster, Sir Keir said Mr Johnson needed to act to clean up politics.
It comes as former Tory deputy PM Michael Heseltine told Sky News he cannot "disagree" with Sir John Major's assessment that recent behaviour of Mr Johnson's government could be considered "politically corrupt".
Lord Heseltine spoke after cabinet minister George Eustice played down the sleaze row as a "storm in a teacup", insisting the government was focused on "big, important decisions" like those posed at COP26.
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Although he is back in the party, the Delyn MP sits as an independent in the Commons as the Conservative whip remains suspended.
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A Commons debate last Monday was granted by Speaker Lindsay Hoyle following Tory attempts to block an immediate 30-day suspension for Mr Paterson over an "egregious" breach of lobbying rules.
Conservative MPs were ordered to back the creation of a Tory-led committee to look again at Mr Paterson's case and the whole standards system.
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1:33
Heseltine: 'This country has been misled'
Sir Keir said: "Boris Johnson needs to attend this debate, answer for his mistakes, apologise to the country and take action to undo the damage he has done.
"The country is yet to hear a word of contrition over his attempts to create one rule for him and his friends and another for everyone else. He must now come to the House and say sorry."
Sir Keir, who will lead Labour's response in the Commons debate, said Mr Johnson should confirm he will not nominate Mr Paterson "or any other MPs who have been handed suspensions from parliament" for a peerage.
He also urged Mr Johnson to work together on plans to throw Mr Roberts out of the Commons - a loophole meant the Delyn MP's six-week suspension could not trigger the recall process which leads to a by-election.
Image:Sir Keir Starmer is preparing for a Commons showdown with Boris Johnson on Monday
Mr Roberts voted with Tory MPs for the plan to spare Mr Paterson an immediate suspension.
Sir Keir said: "It is disgraceful that Mr Roberts has been welcomed back as both a member of parliament and the Conservative Party despite having been found to have sexually harassed a junior member of staff.
"That he was able to aid and abet the prime minister in his attempts to corrupt British politics last week should be a source of shame to the Tories.
"The prime minister was prepared to rip up the system to save one of his disgraced MPs - why will he not take action to protect others from this one?"
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0:56
PM's constituents give their verdict
Sir Keir also demanded a "full, transparent investigation" into how Randox - one of the firms that paid Mr Paterson - came to win COVID-19 testing contracts.
He said it was "vital the public has confidence that Owen Paterson's paid advocacy did not influence these decisions".
The parliamentary commissioner for standards' investigation into Mr Paterson's activities covered from October 2016 and February 2020, before the pandemic struck.
Conservative heavyweights have also attacked Mr Johnson's government over the lobbying row.
Asked about Sir John's comments, Lord Heseltine told Sky News: "I don't think you can disagree with that."
He added: "The background is extremely uncomfortable because we're going into a very difficult period.
"We've got the disaster of Brexit, we've got the environmental conference hanging by a thread in Glasgow, we've got the COVID situation, and there's no doubt at all that people's living standards by this time next year are going to look very, very different to those they enjoy today.
"This is a bad moment for the government by any standards."
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0:51
'PM should consider his position' - Labour
The Liberal Democrats, who secured the emergency debate, have called for an independent statutory public inquiry into sleaze and corruption allegations.
The inquiry, which would have the power to summon witnesses and take evidence under oath, would examine not only the Paterson row but also the awarding of coronavirus contracts, whether Mr Johnson's holidays were properly declared, and the refurbishment of his Downing Street flat.
The party also said that any MPs being investigated by the parliamentary commissioner for standards should not be able to vote or propose amendments to motions related to disciplinary issues.
Ten million COVID-19 booster jabs have now been administered in the UK, latest figures show.
The milestone - hailed by the prime minister - was reached after 409,663 third shots were given out on Saturday, taking the total to 10,062,704.
Another 35,045 first doses and 23,952 second doses were also administered, meaning 50,234,416 people have had at least one jab and 45,836,791 have had two.
The third shots are currently available to those aged over 50 and those deemed most at risk from coronavirus.
The rollout began in September, and people in England have had to wait until six months after their second dose before they have been eligible to book.
For most, the booster is designed to top up the immunity they received from two doses earlier in the year. For immunocompromised people, it's classed as a third dose as they didn't get enough protection from two jabs in the first place.
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Prime Minister Boris Johnson tweeted after the milestone was confirmed on Sunday: "An amazing 10 million people across the UK have already come forward for their booster.
"We know vaccine immunity wanes over time, so boosters are vital in keeping you and your loved ones protected through the winter.
"Please get this lifesaving jab as soon as you are called."
An amazing 10 million people across the UK have already come forward for their booster.
We know vaccine immunity wanes over time, so boosters are vital in keeping you and your loved ones protected through the winter.
Latest figures from the government's coronavirus dashboard also showed another 30,305 daily infections, compared to 30,693 on Saturday and 38,009 this time last week.
Another 62 people have died within 28 days of a positive test, compared to 155 on Saturday and 74 a week ago.
The total number of people to have died within 28 days of testing positive for coronavirus now stands at 141,805, according to government figures.
The booster jab milestone comes as the health secretary urged the elderly and vulnerable to have the dose "as soon as you can" in order to avoid restrictions being imposed over Christmas.
Sajid Javid issued the call as three million more people in England are set to be invited to have a booster shot.
Mr Javid's message comes after one of Britain's top scientists warned the COVID crisis is a "long way from over" and the situation in the UK is "concerning".
The comments from Sir Jeremy Farrar, director of the Wellcome Trust, came after Sky News revealed he had quit the government's Scientific Advisory Group for Emergencies (SAGE).
Sir Jeremy has advocated for a "vaccine plus" strategy to curb the high levels of transmission seen in the UK,
His plan calls for more mask wearing, ventilation and continued coronavirus testing to get the nation through what some experts predict will be a difficult winter.
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Labour's Sir Keir Starmer has accused the PM of "corrupt and contemptible" behaviour in trying to "protect" Tory MP Owen Paterson, after he was found to have broken lobbying rules.
Sir Keir told the BBC the government was "trashing" the UK's reputation for upholding democratic standards.
Mr Paterson has now quit as an MP.
Ministers backed plans to change the standards system that found Mr Paterson guilty but changed their minds the next day, following a political outcry.
The vote to reform the rules - backed by MPs on Wednesday - also put on hold a 30-day House of Commons suspension Mr Paterson was facing for breaching the rules by lobbying on behalf of two private companies.
But Environment Secretary George Eustice defended the government's position, saying it had been trying to give politicians under investigation the right to appeal against any findings against them - rather than protect Mr Paterson.
He told BBC One's Andrew Marr Show: "We've been consistent on this throughout."
Sir Keir told the same programme: "Instead of upholding standards, [the prime minister] ordered his MPs to protect his mate and rip up the whole system.
"That's corrupt and it's contemptible and it's not a one-off."
On Saturday, former Conservative Prime Minister Sir John Major said the current government had been "politically corrupt" over its treatment of the House of Commons, adding: "There's a general whiff of 'We are the masters now' about their behaviour."
Analysis
By Ione Wells, political correspondent
Sir Keir Starmer's anger was palpable, but it's hardly unexpected. He's the opposition leader, after all - and none of the opposition backed plans to overhaul the system in the first place.
More troubling for the government is the frustration among its own MPs. Many put their necks on the line to do as their bosses told, some against their will.
Some who considered abstaining, I'm told, were reminded of positions they held that could be taken away.
The relationship between MPs and those at the top has been left bruised. This could bite the government when it needs those MPs on side again in future votes, particularly on controversial issues.
The Mail of Sunday quotes Shipley MP Philip Davies pleading, "Please don't ever ask me to vote for anything ever again," after claiming he received abuse from his constituents for it.
A signal, perhaps, of more tricky votes ahead for ministers.
Sir Keir said: "Boris Johnson is the prime minister who is leading his troops through the sewer - he's up to his neck in this."
Speaking earlier on Sky News, Labour's shadow House of Commons leader, Thangham Debbonaire, urged Mr Johnson to "consider his position".
She also described the position of Commons leader Jabob Rees-Mogg - who had to announce the government's U-turn on Thursday - as "untenable".
Asked about these comments on the Andrew Marr Show, Sir Keir said: "As the opposition, we always want this government to go."
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On Wednesday, Conservative MPs blocked the Standards Committee's recommendation that Mr Paterson should be suspended by calling for an overhaul of the MPs' standards watchdog instead.
They initially had the backing of No 10, but Downing Street changed its mind after a backlash by opposition MPs and some Conservatives.
Speaking on Sky News, Mr Eustice acknowledged the government had "made a mistake" in trying to get Mr Paterson's breach of lobbying rules re-examined by a new, Conservative-majority committee which would also consider the entire Commons standards regime.
He added: "What we have seen is a Westminster storm in a teacup."
But senior Conservative MP Tobias Ellwood told BBC Radio 4's The World this Weekend: "We've lost our way and we need to find our moral compass."
"Good policy, good governance, leadership, statecraft - that's what's needed at the moment, rather than manipulating the system for our own survival," he added.
Mr Paterson, who denies breaking the rules, said in his resignation statement that he now wanted a life "outside the cruel world of politics".
His departure will trigger a by-election in the North Shropshire seat he has held since 1997.
What did Owen Paterson do?
House of Commons
Owen Paterson has been a paid consultant for clinical diagnostics company Randox since 2015 and to meat distributor Lynn's Country Foods since 2016, earning a total of £100,000 a year on top of his MP's salary.
MPs are allowed to have these jobs, but are not allowed to be paid advocates - using their influence in Whitehall for the company's gain.
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Labour's Sir Keir Starmer has accused the PM of "corrupt and contemptible" behaviour in trying to "protect" Tory MP Owen Paterson, after he was found to have broken lobbying rules.
Sir Keir told the BBC the government was "trashing" the UK's reputation for upholding democratic standards.
Mr Paterson has now quit as an MP.
Ministers backed plans to change the standards system that found Mr Paterson guilty but changed their minds the next day, following a political outcry.
The reforms - supported in a vote by MPs on Wednesday - could have had the effect of putting back a 30-day House of Commons suspension Mr Paterson was facing for breaching the rules by lobbying on behalf of two private companies.
But Environment Secretary George Eustice defended the government's position, saying it had been trying to give politicians under investigation the right to appeal against any findings against them - rather than protect Mr Paterson.
He told BBC One's Andrew Marr Show: "We've been consistent on this throughout."
Sir Keir told the same programme: "Instead of upholding standards, [the prime minister] ordered his MPs to protect his mate and rip up the whole system.
"That's corrupt and it's contemptible and it's not a one-off."
On Saturday, former Conservative Prime Minister Sir John Major said the current government had been "politically corrupt" over its treatment of the House of Commons and that its attempt to overhaul the standards system had been "rather a bad mistake".
"There's a general whiff of 'We are the masters now' about their behaviour," he told the BBC.
Analysis
By Ione Wells, political correspondent
Sir Keir Starmer's anger was palpable, but it's hardly unexpected. He's the opposition leader, after all - and none of the opposition backed plans to overhaul the system in the first place.
More troubling for the government is the frustration among its own MPs. Many put their necks on the line to do as their bosses told, some against their will.
Some who considered abstaining, I'm told, were reminded of positions they held that could be taken away.
The relationship between MPs and those at the top has been left bruised. This could bite the government when it needs those MPs on side again in future votes, particularly on controversial issues.
The Mail of Sunday quotes Shipley MP Philip Davies pleading, "Please don't ever ask me to vote for anything ever again," after claiming he received abuse from his constituents for it.
A signal, perhaps, of more tricky votes ahead for ministers.
Sir Keir said: "When there was sleaze in the mid-1990s, John Major rolled up his sleeves and he put in place the Nolan Committee on Standards in Public Life - so he was the prime minister who said, 'I will clear this up.'
"Boris Johnson is the prime minister who is leading his troops through the sewer - he's up to his neck in this.
"I don't think you or anybody else could with a straight face say this prime minister is the man to clean up politics and to have the highest standards in public life because he is in the sewer with his troops."
Speaking earlier on Sky News, Labour's shadow House of Commons leader, Thangham Debbonaire, urged Mr Johnson to "consider his position".
She also described the position of Commons leader Jabob Rees-Mogg - who had to announce the government's U-turn on Thursday - as "untenable".
Asked about these comments on the Andrew Marr Show, Sir Keir said: "As the opposition, we always want this government to go."
This video can not be played
To play this video you need to enable JavaScript in your browser.
On Wednesday, Conservative MPs blocked the Standards Committee's recommendation that Mr Paterson should be suspended by calling for an overhaul of the MPs' standards watchdog instead.
They initially had the backing of No 10, but Downing Street changed its mind after a furious backlash by opposition MPs and some Conservatives.
Speaking on Sky News, Mr Eustice acknowledged the government had "made a mistake" in trying to get Mr Paterson's breach of lobbying rules re-examined by a new, Conservative-majority committee which would also consider the entire Commons standards regime.
He added: "What we have seen is a Westminster storm in a teacup."
"But the overall principle, that you should have due process and a right of appeal in these types of situations, I don't think anybody doubts," Mr Eustice said.
Meanwhile, the chairman of Parliament's Standards Committee has called on Parliament to approve his committee's report on Mr Paterson's conduct - even though he has now resigned as an MP.
Writing in the Observer, Labour's Chris Bryant said this would be the bare minimum needed to declare beyond doubt that Mr Paterson's conduct was "corrupt".
Mr Paterson denies breaking the rules.
When he resigned, he issued a statement saying he now wanted a life "outside the cruel world of politics", adding: "I maintain that I am totally innocent of what I have been accused of and I acted at all times in the interests of public health and safety."
His resignation will trigger a by-election in his North Shropshire seat.
What did Owen Paterson do?
House of Commons
Owen Paterson has been a paid consultant for clinical diagnostics company Randox since 2015 and to meat distributor Lynn's Country Foods since 2016, earning a total of £100,000 a year on top of his MP's salary.
MPs are allowed to have these jobs, but are not allowed to be paid advocates - using their influence in Whitehall for the company's gain.
The health secretary has urged elderly and vulnerable people to get their COVID-19 booster jabs "as soon as you can" to help avoid restrictions being imposed over Christmas.
Around 30% of people aged over 80 and 40% of over-50s in England are yet to receive a top-up jab of the coronavirus vaccine, according to the Department of Health.
Three million more people in England are being invited to have a booster shot next week - and Sajid Javid said he "strongly urges" everybody eligible for the jab to take up the offer.
Image: Sajid Javid says the UK is facing a 'challenging winter'
The health secretary said: "We know immunity begins to wane after six months, especially for the elderly and the vulnerable, and booster vaccines will top-up their protection to keep people safe over the winter.
"I strongly urge everybody who is eligible for a COVID-19 booster or flu vaccine to take up the offer as soon as you can.
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"For those not yet eligible, please help your parents, grandparents or vulnerable loved ones get their jabs - it could save their life."
Mr Javid also told anyone who is yet to have their first or second doses of the COVID vaccine, "it is not too late".
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"This truly is a national mission," he added.
"If we all come together and play our part, we can get through this challenging winter, avoid a return to restrictions and enjoy Christmas."
Almost 10 million people in the UK have received their top-up jabs of the COVID vaccine, which Mr Javid hailed as "a phenomenal achievement in under two months".
Image:Almost 10 million people in the UK have received their top-up jabs of the COVID vaccine
The boosters are currently available to those aged over 50 and those deemed most at risk from COVID-19.
Currently, people in England have to wait until six months after their second dose before they are eligible to book their booster jab.
Mr Javid's message comes after one of Britain's top scientists warned the COVID crisis is a "long way from over" and the situation in the UK is "concerning".
The comments from Sir Jeremy Farrar, director of the Wellcome Trust, came after Sky News revealed he had quit the government's Scientific Advisory Group for Emergencies (SAGE).
Sir Jeremy has advocated for a "vaccine plus" strategy to curb the high levels of transmission seen in the UK,
His plan calls for more mask wearing, ventilation and continued coronavirus testing to get the nation through what some experts predict will be a difficult winter.
The government has so far declined to take this route and has not yet adopted a COVID Plan B - tougher measures designed to curb the spread of the virus and protect the NHS.
Prime Minister Boris Johnson has been "clear" the data does not currently back up the need for Plan B, a government spokesperson said.
On Saturday, the UK recorded a further 155 daily COVID-related deaths and 30,693 more infections in the latest 24-hour period, according to government figures.
