KING Charles was cheered by thousands as he arrived at Buckingham Palace today as he began his second day of royal duty.
Crowds lining the streets erupted as he was driven down The Mall this afternoon.
The King smiled and waved at well-wishers from the car as he was taken through the Palace gates.
His wife, Queen Consort Camilla, also waved to the cheering crowds as she followed behind.
King Charles is beginning his second day of duty after formally being declared Monarch yesterday.
He met with Commonwealth general secretary Patricia Scotland today.
Read more on the Queen's death
The sovereign also hosted a reception with Realm High Commissioners in the Bow Room of the Palace and met the Dean of Windsor.
It comes as the Queen's coffin left Balmoral this morning to begin her final journey.
The procession is currently making its way to Edinburgh, where the King and Queen Consort Camilla will travel to tomorrow.
They will mount a vigil along with other members of the Royal Family inside the cathedral at 7.20pm.
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Charles was formally proclaimed King of Scotland, Wales and Northern Ireland today as Britain united behind the new monarch.
It came after he was yesterday formally declared King of England in a historic Accession ceremony at St James' Palace.
He vowed to follow the Queen's "inspiring" example, saying: "I know how deeply you, the entire Nation - and I think I may say the whole world - sympathise with me in the irreparable loss we have all suffered.
"It is the greatest consolation to me to know of the sympathy expressed by so many to my Sister and Brothers and that such overwhelming affection and support should be extended to our whole family in our loss.
"To all of us as a family, as to this kingdom and the wider family of nations of which it is a part, my Mother gave an example of lifelong love and of selfless service.
"My Mother’s reign was unequalled in its duration, its dedication and its devotion. Even as we grieve, we give thanks for this most faithful life."