King Charles officially proclaimed as new monarch

STORY: "Prince Charles Philip Arthur George, is now by our the death of our late sovereign of happy memory, become our only lawful and happy liege lord, Charles III."

"Three cheers for the king!"

He became king on the death of Queen Elizabeth, but on Saturday (September 10) Charles was officially proclaimed as the new British monarch.

"I am deeply aware of this great inheritance and of the duties and heavy responsibilities of Sovereignty which have now passed to me."

The accession and proclamation ceremonies, last held 70 years ago for his mother, took place at St James's Palace in London.

His son and heir William - newly named Prince of Wales - the Queen Consort Camilla and an array of British lawmakers from the past and present were in attendance.

Amid all the pomp and ceremony on Saturday, came a moment of characteristic humor and frustration as the new king called for a pen holder to be removed while he signed the official documents.

A day earlier Charles had addressed his new subjects for the first time as their new head of state in a televised broadcast.

He appeared composed as he took his place in front of the cameras where he vowed to serve the nation with "loyalty, respect and love" and delivered an emotional tribute to his late mother.

"May 'flights of Angels sing thee to thy rest'."

Outside the royal residences, floral tributes, candles and messages continue to be left - and also collected up - two days on from the death of 96-year-old Queen Elizabeth.

"She's been there constantly for everybody. And it feels kind of like a really, I don't want to get emotional, but, you know, a really sad moment in everyone's lives, especially in Britain but I know across the world as well."

Britain has declared a period of mourning until the state funeral for Elizabeth, expected in a little over a week's time.

Leaders from around the world will be there, including U.S. President Joe Biden who confirmed his attendance on Friday.

Before that though the queen's coffin will be moved from her home in Balmoral in Scotland, where she passed away, to Edinburgh for a few days -- until she is returned to London to lie in state.