Protesters opposed to the British monarchy have attended events in Wales and Scotland to proclaim the accession of King Charles III.
They made up a tiny minority among the huge crowds that gathered for the occasion along the Royal Mile in Edinburgh and Cardiff Castle in Wales.
One person was heard booing throughout the cheers in the Scottish capital with other members of the crowd shouting back: "Oh shut up." A group of people were then heard laughing.
The proclamation was followed by a 21-gun salute from the city's castle moments later.
Donald Maclaren, 64, of Livingston, said: "It's very disrespectful, there is a time and a place if you want to protest, but this isn’t it.
"Somebody shouted 'republic now’ then, when they were doing the three cheers, somebody was booing. "
Liz Maclaren, 67, also branded it "disrespectful", adding: "The boos sounded like one person."
Helen Smith, 48, said she felt the hecklers at the proclamation in Edinburgh were being disrespectful towards the event.
She told the PA news agency: "I believe everyone does have a right to protest, but I thought it was the wrong place at the wrong time. Incredibly disrespectful to the event that we were just seeing.
"We just felt disappointed because the eyes of the world are on us at the moment. It's a massive moment in history.
"We've had the death of the longest-serving monarch we’ve ever had, we’ve got the new king being proclaimed, and then we have the heckling at the back and the shouting."
An anti-monarchy protester appeared at the Mercat Cross moments before the proclamation in Edinburgh.
She held a sign which said: "F*** imperialism, abolish the monarchy."
Police appeared and then took her away moments later, and the crowd began to applaud. One man shouted: "Let her go! It's free speech!" while others shouted: "Have some respect."
More than 2,000 people were allowed inside the grounds at Cardiff Castle in Wales to hear the accession proclamation ceremony of King Charles III.
Hundreds more lined the streets outside the castle walls, including two protesters holding signs reading: "Not our king! It's colonial subjugation of the Welsh people."
Prior to the Proclamation, 26 men of the 3rd Battalion the Royal Welsh - supported by the Band of the Royal Welsh - marched to the castle.
They were accompanied by the regimental mascot, a Welsh billy goat called Lance Corporal Shenkin IV, and Goat Major Sergeant Mark Jackson.
Meanwhile, William - the new Prince of Wales - pledged to serve the Welsh people with "humility and great respect" and to travel to the nation "very soon" in a phone call with the First Minister of Wales Mark Drakeford today, Kensington Palace said.
The proclamation of the UK's new king was also read at Hillsborough Castle in Co Down today.
It comes as a DUP Assembly member in Co Down has asked police to investigate a number of incidents of pro-IRA chanting and singing and mockery of the queen's death.
Queen Elizabeth passed away last Thursday, just over a year after the death of her husband Prince Philip. She was 96.
