Military bands, Royal gun salutes and cheers have welcomed the new Sovereign across the United Kingdom as regional proclamations of His Majesty King Charles III were read in Edinburgh, Cardiff and Belfast.
Crowds have gathered to watch the military processions, some led by regimental animal mascots, as the official declaration that Charles is now the monarch was carried out in Scotland, Wales and Northern Ireland on Sunday, following the proclamation in London on Saturday.
The proclamation in Edinburgh was read by the Lord Lyon King of Arms, Dr Joseph Morrow, at the Mercat Cross and at the drawbridge of Edinburgh Castle.
Alongside, was a guard of honour formed by two officers and 50 soldiers from the Royal Regiment of Scotland.
The Band of HM Royal Marines in Scotland were also on parade, joined by a guard of honour from two officers and 25 other ranks of The King's Body Guard for Scotland.
The King's Body Guard, the guard of honour and the band marched from the Castle Esplanade to the Mercat Cross before His Majesty's State Trumpeters sounded a fanfare and the proclamation was read to the people of Scotland by the Lord Lyon King of Arms.
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Immediately after, the trumpeters sounded a second fanfare, before the Lord Lyon King of Arms proclaimed 'God Save The King'.
A 21-gun Royal Salute was then fired by 105th Regiment Royal Artillery from Edinburgh Castle, followed by a Royal salute by the trumpeters and one verse of the National Anthem from the band.
The King's Body Guard for Scotland and the guard of honour returned to the slope, with the Lord Lyon King of Arms calling for "Three Cheers for His Majesty The King" – with the guards of honour responding to each declaration.
The same series of events was then carried out at Edinburgh Castle.
In Northern Ireland, the proclamation was read by the Norroy and Ulster King of Arms Robert Noel alongside a guard of one officer and 20 soldiers from 2nd Battalion The Royal Irish Regiment.
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The personnel were also supported by The Band of the Royal Irish Regiment.
As in Scotland, a 21-gun Royal Salute was fired from Hillsborough Castle by 105th Regiment Royal Artillery, with the Hillsborough Guard bugler sounding the royal salute after the final round.
One verse of the national anthem was then played before the Norroy and Ulster King of Arms called for "Three Cheers for His Majesty The King".
In Wales, His Majesty's Lord-Lieutenant of South Glamorgan Morfudd Meredith read the proclamation in Welsh and it was read in English by Wales Herald of Arms Extraordinary Thomas Lloyd.
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The ceremony took place within Cardiff Castle, with one officer and 25 soldiers from 3rd Battalion The Royal Welsh forming the proclamation guard and The Band of the Royal Welsh.
Welsh billy goat Lance Corporal Shenkin IV, the official mascot for the Regimental Mascot of 3rd Battalion The Royal Welsh, led a march from City Hall to the Castle ahead of the proceedings.
After the proclamation, the Lord-Lieutenant and Wales Herald of Arms Extraordinary then proclaimed 'God Save The King' in both Welsh and English.
A Royal Salute was sounded by trumpeters before one verse of the national anthem was played, followed by the Welsh anthem.
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Alongside proclamations in the UK, ceremonies also took place in Gibraltar and Cyprus and have been taking place in the past 24 hours across the Commonwealth.