The Queen's coffin has arrived at Buckingham Palace and was greeted by members of the Royal Family
It will move on Wednesday to Westminster Hall, where the Queen will lie in state for four days
The Queen's daughter, the Princess Royal has issued a statement saying she was "fortunate to share the last 24 hours of my dearest mother’s life"
Hundreds of thousands of people are expected to file past the coffin to pay their respects, with a huge policing operation expected
King Charles III and Camilla, the Queen Consort, who are now in London, earlier visited Northern Ireland as part of a tour of the UK
They greeted crowds at Hillsborough Castle, met political leaders and attended a service at St Anne's Cathedral
King Charles III and Camilla, the Queen Consort, have landed at Belfast City airport for the King's first visit as monarch to Northern Ireland.
The King and his wife will soon make the journey to Hillsborough Castle in County Down.
Image source, PA Media
Image source, ReutersAs the sun rose in Edinburgh people waited in line to pay their respects to Queen Elizabeth II at St Giles' Cathedral
Image source, Getty ImagesAn armed sniper stands perched on the roof of a building in Edinburgh
Image source, AlamyPeople have continued to queue through the morning
Members of the public will be able to view the coffin until 15:00 BST on Tuesday
Justin Rowlatt
BBC Climate editor
King Charles’ views on the environment are well known, but will they influence his reign?
As Prince of Wales he spent decades campaigning, cajoling and convening meetings to drive action on environmental issues.
As King, different rules apply – he is obliged to remain politically neutral, and Charles has said he will honour the constitutional limits of his role.
When asked in a BBC interview in 2018 whether he would be a “meddling” King he replied, “I am not that stupid”, and referred to suggestions he would continue to lobby parliamentarians as “nonsense”.
But friends and former advisors say he will not cool on climate.
When he opened the UN climate conference in Glasgow in November last year he talked of the need for “a military-style campaign to marshal the strength of the global private sector.”
One senior British politician told me he could imagine Charles making a similar speech as King.
“You won’t hear him expressing a view on fracking”, he said, “but I can imagine him making a speech on the need to take more urgent action on climate.”
Image source, PA MediaThe next leg of the King and Queen Consort's journey from Edinburgh to Belfast is under way, with King Charles III and Queen Camilla now in the air.
They're expected to land at Belfast City Airport around lunchtime before embarking on an afternoon of engagements.
Stay tuned for live updates once they arrive.
Daniel Sandford
reporting from New Scotland Yard
Image source, Getty ImagesThe Queen's funeral on Monday will be an unprecedented policing operation for London's Metropolitan Police.
Heads of state from all over the world will be arriving in London. Some of them will be having dinner with King Charles III on Sunday evening before attending the funeral at Westminster Abbey.
As well as US President Joe Biden, other dignitaries expected to attend include the Emperor of Japan, the King and Queen of Spain, the King and Queen of Belgium, the Prince and Princess of Monaco and the presidents and prime ministers from all over the Commonwealth and the European Union.
There will be people taking the opportunity to protest and the Met Police will have to handle that.
The new commissioner Sir Mark Rowley had his first day yesterday; he has been involved in developing all these plans over many years.
He says it is a huge operation, a very complicated one, but Sir Mark does think he can keep people safe.
James Landale
Diplomatic correspondent
Representatives from Russia, Belarus and Myanmar have not been invited to the State Funeral of the late Queen Elizabeth II, according to Whitehall sources.
And the Islamic Republic of Iran will be represented only at ambassadorial level.
Officials are expecting about 500 foreign dignitaries to attend in what they say is the biggest diplomatic gathering hosted in the UK for decades. They compared it to organising 100 state visits in a few days, when normally there are only a couple of such visits each year.
The heads of state will be allowed to bring one other person only. Such are the expected numbers that most of the guests will be bussed into Westminster Abbey from a location in west London. Some exceptions – such as US President Joe Biden – are expected to be allowed to travel separately for security reasons.
If you're just joining us, welcome.
The Queen's coffin has been lying in state overnight at St Giles' Cathedral in Edinburgh, where mourners have been filing past throughout the early hours to pay their respects.
The coffin is due to be moved to the city's airport later today, from where it will fly to London.
Here's what else is happening today:
Stay with us as we bring you the latest developments.
King Charles III and Camilla, the Queen Consort, are on the move.
The royal couple have left the Palace of Holyroodhouse and are on their way to Edinburgh airport, from where they'll fly to Belfast.
They're due to visit Hillsborough Castle, where Chris Heaton-Harris, the newly-installed Northern Ireland secretary, will greet them.
Image source, Getty ImagesAs we have been reporting, thousands of mourners have been filing into St Giles' Cathedral in Edinburgh since last night to see the Queen's coffin and pay their respects.
People will be able to walk past the coffin until 15:00 BST today - but they're being urged to get in the queue soon or risk missing out.
At 10:00, the Scottish government confirmed the wait time was roughly one hour but that is expected to increase throughout the morning.
The Scottish government and Edinburgh Council are understood to be working on a decision on when they will close the admission process for members of the public still wishing to access St Giles' and stop people joining the queue.
Katy Austin
Transport correspondent
Image source, EPAOnly a handful of train operators serving routes from London have said they will be putting on night trains when the Queen lies in state later this week - and they’ll be “very limited”.
For example, an extra train per hour on some routes, and every two hours on some others.
The focus will be on getting people who've travelled to the capital to view events back from London.
The unprecedented number of people expected to travel is likely to put pressure on transport networks, so operators are doing what they can to provide additional services.
But that won’t be possible everywhere and people are being told to make sure they check before they travel.
I understand journey planners - like National Rail Enquiries. - aren’t showing extra services yet but they should be updated over the next day or two.
Elizabeth has queued to see the Queen's coffin seven times
We're hearing more from people queuing at St Giles' Cathedral in Edinburgh to see the Queen's coffin before it is taken to Buckingham Palace later today.
Elizabeth, undeterred by the long wait time, has queued to see the Queen's coffin seven times now.
"It's beautiful when you enter into the cathedral. The atmosphere, the presence. There's something definitely divine there - it's beyond words. I feel deeply moved every time I go through," she tells BBC Breakfast.
"Every time I've gone back again and again because Queen Elizabeth II was irreplaceable and I wanted to pay my respects. But it was more than that, it's an experience I didn't want to miss."
Image source, ReutersThe head of staff for the Royal Air Force has been talking us through the busy day of events ahead for him and his colleagues.
The Queen's coffin will be flown from Edinburgh to RAF Northolt in west London later, with a royal guard of honour. The Princess Royal, the Queen's daughter, will accompany her.
Princess Anne will be met off the plane by a reception party including Air Chief Marshall Sir Mike Wigston, chief of the air staff for the RAF, who will also be part of a royal salute as the coffin is moved into the hearse taking the late Queen to London.
The aircraft the Queen will be flown in is itself is a special one - a C-17 Globemaster. Recent uses of C-17s include evacuating people from Afghanistan to escape the Taliban in 2021, and delivering humanitarian aid and weapons to Ukraine as it fights the Russian invasion this year.
Sir Mike has had regular meetings with the Queen as part of his role and told BBC Breakfast she had a "profound sense of understanding of what it means to serve" and that she was "the embodiment of a life of service".
Sir Mike added that the King's former flying instructor says he was a good pilot and could have had a "succesful flying career" in the RAF.
Image source, PA WireThe Queen and the Duke of Edinburgh on a visit to RAF Leuchars in Fife in June 1957
We've brought you lots of detail about the thousands of people queueing overnight in Edinburgh to see the Queen's coffin - and a woman, who took her young children along, has been talking to BBC Breakfast about what it meant to her.
Mother-of-two Lorna, who left her home in Glasgow at 05:00 this morning, says she'd expected to queue for most of the day - but managed to make the journey to the Scottish capital and get in and out of St Giles' Cathedral within two hours.
Emily, Lorna's 7-year-old daughter, says she "loved the Queen" because of her sketch with Paddington Bear at the recent Platinum Jubilee. Asked how she's been feeling since news of the Queen's death, she adds she's been "sad".
Lorna says she "felt it was important" for the three of them to be there - witnessing "history" - even if her children don't understand the significance of the moment just yet. On being inside St Giles' - where the Queen is resting until later today - Lorna says the mood is very "sombre".
"Everyone's just taking a moment to reflect on what the Queen meant to them - or, in this case, what could've been," she says, adding it's a very "quiet reflection".
Back to Edinburgh now, where the Scottish Government has issued an update on waiting times for those queuing to see the Queen's coffin at St Giles' Cathedral.
Officials expect the current wait for those in the queue to be 45 minutes - but they do expect it to lengthen as the morning goes on.
St Giles' Cathedral will close at 15:00 BST, and the Queen's body will be flown to London from Edinburgh airport later.
Read more on what you need to know if you want to view the Queen's coffin in Edinburgh here.
Chris Page
BBC News Ireland correspondent
Image source, PA MediaSinn Fein Vice-President Michelle O'Neill signs a book of condolence to Queen Elizabeth II in Stormont
For more than two-thirds of Northern Ireland’s time in existence Queen Elizabeth II was the monarch.
When the late Queen began her reign, Northern Ireland was the only part of the UK with a devolved government.
This was made up exclusively of politicians dedicated to the authority of the crown.
Now at the beginning of King Charles III's time as sovereign, the political landscape here is very different.
The principle of devolution is now based on power-sharing between unionists and nationalists – though the latest deadlock means the Stormont Executive has not been fully functioning since February.
Unionism - support for Northern Ireland being part of the UK - retains an overall electoral lead over nationalism.
But that advantage has narrowed, mainly because of the growth of parties which are neutral on the constitutional status of Northern Ireland.
The biggest individual party in the devolved Assembly is Sinn Féin – whose ultimate aim is taking Northern Ireland out of King Charles III’s realm.
If there were to be a referendum on Irish unity, the King would not be able to express an opinion.
But his decision to visit Northern Ireland and the other devolved nations of the UK in his first few days as monarch will be seen as demonstrating his commitment to the union.
Ciaran McCauley
Reporting from Hillsborough, County Down
Valerie and Hayley Stokes have attended many royal events
Royal events are nothing new for mother and daughter Valerie and Hayley Stokes, from Ballynahinch, County Down.
They've attended several royal weddings: Charles and Diana; Charles and Camilla; William and Kate. Now they're at Hillsborough, the royal residence in Northern Ireland, early in anticipation of the King's first visit to Northern Ireland.
"It was very important to us," says Hayley, with Valerie adding, with reference to the Queen: "It's bittersweet. We're mourning but also celebrating."
As for the new King, they have been impressed with how he has been carrying out his royal duties so far.
"It's difficult, he's been in training for this all his life," says Valerie.
"He has been handling it with grace," adds Hayley.
Mark Simpson
BBC News NI
Crowds have already started gathering outside Hillsborough Castle hours before the King and Queen Consort are due to arrive in Northern Ireland.
Many people have wrapped up warm and some have even brought picnics.
King Charles III will make his first visit to Northern Ireland today since becoming monarch. He will be joined by Camilla, the Queen Consort.
Prime Minister Liz Truss will also be in Belfast, for her first visit to the city since entering Downing Street exactly a week ago.
Image source, PA MediaSoldiers march outside Buckingham Palace as part of rehearsals for the procession of Queen Elizabeth II's coffin
Image source, PA MediaSoldiers will walk alongside the coffin as it makes its way from Buckingham Palace to Westminster Hall
Image source, PA MediaThe coffin will make its way past Big Ben and the Houses of Parliament
Image source, PA MediaThe Queen will lie in state in Westminster Hall until her funeral on Monday morning
Image source, PA MediaA military rehearsal of the procession of the Queen's coffin to Westminster Hall took place in central London overnight.
At around 04:00 BST, troops were ordered to march as a horse-drawn carriage of the King's Troop Royal Horse Artillery carried a black coffin along the route.
The real procession takes place on Wednesday afternoon, when the Queen's coffin will be moved from Buckingham Palace along Queen's Gardens, The Mall, Horse Guards and Horse Guards Arch, Whitehall, Parliament Street, Parliament Square and New Palace Yard.
King Charles III, members of the Royal Family and senior staff of the Queen and King's households are expected to walk behind the coffin.
The rehearsal saw people standing in for them.
Lieutenant Elizabeth Godwin, of the Household Cavalry Regiment, says she feels a "great sense of pride and duty" to be part of the occasion.
"We have a squadron of Life Guards and Blues and Royals who will be escorting the Queen one last time from Buckingham Palace, through London," she says.
"I will be ensuring our squadron remains in step, and maintains distance and spacing to ensure we remain one cohesive unit," Godwin adds.