Thousands of mourners are continuing to join the long queue to pay their respects to Britain's Queen Elizabeth II as she lies in state at Westminster Hall.
Many have queued overnight for the chance to file past the monarch's coffin.
By 8am this morning, the queue was around 4.2km long and stretched to Borough Market.
The coffin, which sits on a catafalque and is draped with a Royal Standard, continues to be guarded at all hours by units from the Sovereign's Bodyguard, the Household Division or Yeoman Warders of the Tower of London.
One of the guards suddenly collapsed overnight, with nearby officials quickly rushing to his aid after he appeared to faint.
The largely black-clad crowd were solemn and pensive as they flowed into the ancient hall where chandeliers and spotlights illuminated the scene beneath the medieval timber roof.
As hundreds of ordinary people of all ages filed past the coffin of the long-reigning monarch, many wiped their eyes with tissues.
Some bowed, some curtsied and some simply took a moment to look at the extraordinary scene.
Former prime minister Theresa May and her husband Philip were among those paying their respects to the queen at Westminster Hall.
Metropolitan Police officers, volunteers and stewards are managing the queue, with people waiting in line given a coloured and numbered wristband.
Yesterday, King Charles III led the royal family in procession behind the queen's coffin from Buckingham Palace to Westminster Hall for the lying in state.
The king then returned to his Highgrove home in Gloucestershire yesterday evening.
He will have a private day of reflection today and is not expected to attend any public events.
In the detailed planning for the aftermath of the queen's death - known as "London Bridge" - a day was set aside at this point for the new monarch to have some time away from public duties.
The period will allow the king to pause, but it is understood he will be working in preparation for his new role and will already be receiving his red boxes of state papers.
The Prince and Princess of Wales have arrived at the main gates to Sandringham House in Norfolk to view floral tributes to the queen.
Thousands of well-wishers turned out to see William and Kate look at the sea of flowers left for the late monarch by the Norwich Gates.
News of the visit saw a large crowd gathered behind metal barriers.
Norfolk Police advised that an 'increasing number' of people were expected and that officers were managing a one-way system around the estate.
The Earl and Countess of Wessex, Edward and Sophie, will travel to Manchester, where they will light a candle in memory of the queen at the city's cathedral.
They will also view the floral tributes in St Ann's Square and the book of condolence at Manchester's Central Library.
The queen's daughter Anne, accompanied by her husband Tim Laurence, will visit Glasgow City Chambers to meet representatives of organisations of which the queen was patron.
Elsewhere, King's Counsel will take part in a wreath-laying.
Senior barristers, now known as KCs instead of QCs after the proclamation of the king, have been invited to dress in robes and court mourning attire.
They will then gather outside the Old Bailey before walking to Gray's Inn Chapel for the ceremony.
The queen's funeral on Monday will see hundreds of world leaders and global royalty pack the historic Westminster Abbey in the heart of the British capital.
US President Joe Biden has confirmed he will attend, as will French President Emmanuel Macron and Japan's Emperor Naruhito.
