Britain is in mourning after the death of Queen Elizabeth, with the military leading commemorations to mark her passing with 96-gun salutes today.
One round was fired every 10 seconds, with 96 rounds representing one round for every year of the Queen's life.
The moment of sombre reflection and mourning can be rewatched on the Forces News YouTube channel.
Gun salutes took place at Hyde Park, the Tower of London, Edinburgh Castle, Portsmouth and Devonport Naval Bases, Cardiff Castle, Edinburgh Castle, Hillsborough Castle, York, Portsmouth and Gibraltar.
In London, The King's Troop Royal Horse Artillery fired the Death Gun Salute in Hyde Park, while at the same time the Death Gun Salute was fired at the Tower of London by the Honourable Artillery Company (HAC).
Some 71 horses made their way into Hyde Park, of which 36 pulled six First World War-era 13-pounder Field Guns.
The King's Troop Royal Horse Artillery is a British Army mounted ceremonial unit that fires Royal salutes on Royal anniversaries and state occasions, such as state visits and Royal birthdays
Similar gun salutes were fired to mark the death of Queen Victoria in 1901 and Winston Churchill in 1965.
The bells tolled at Westminster Abbey, St Paul's Cathedral and Windsor Castle – with churches being urged to toll their bells across England at noon.
Tributes have been pouring in from across the globe, as well as mourners in the UK laying flowers outside Buckingham Palace – which will be moved to the tribute area in Green Park after 12 hours.
Members of the public also paid tribute to the Queen at Holyrood Palace and told Forces News the news was shocking and sad.
"I think she's done a lot for the country, she's had an amazing reign and it's a very sad day," one said.
Another mourner, originally from the US, told Forces News after living in Edinburgh "for a number of years" they have "great respect for the Queen".
"We're very sad to hear of her passing and wanted to be able to come down here to pay our respects and lay some flowers here at the palace."
Watch: Mourners lay flowers at Holyrood Palace following death of Queen Elizabeth II.
Thursday would traditionally have been D-Day or D+0 in the plans for the aftermath of the Queen's death, codenamed London Bridge.
But the announcement came late in the day – at around 18:30 on Thursday 8 September – meaning plans have been shifted a day to allow the complex arrangements to be put in place, meaning D+0 will be considered Friday.
The Government will confirm the length of national mourning, which is likely to be around 12 days, from now up to the day after the Queen's funeral.
A procession is expected along Royal Mile to St Giles' Cathedral. Then will follow a service and the Vigil of the Princes by members of the Royal Family.
The public may get the chance to file past the Queen's coffin at a mini lying in state in St Giles'.
The House of Commons and the House of Lords are expected to come together in Westminster for a Motion of Condolence, which the King could attend.
After leaving England and visiting Scotland, Charles will at some stage travel to the other countries of the UK – Wales and Northern Ireland – known as Operation Spring Tide.
Watch: Emotional members of the public pay tribute to the Queen at Holyrood Palace.