King Charles III was proclaimed monarch in historic ceremonies at St James’s Park and the Royal Exchange in London.
Crowds were seen and heard singing ‘God save the King’ in various locations.
Earlier, at a meeting of the Accession Council, Charles III took an oath and paid tribute to the late Queen.
In attendance were Prince William, Queen Camilla, as well as current and former politicians and prime ministers.
More proclamations will be made across the UK until Sunday.
The Queen, the United Kingdom’s longest-reigning monarch, died peacefully at Balmoral Castle on Thursday afternoon at the age of 96.
Meanwhile, King Charles III has approved approved the day of the Queen’s funeral being a bank holiday, though it is not known what date this will be.
The King stated before the Accession Council that his mother’s death was a “irreparable loss.”
Senior members of Parliament, including Prime Minister Liz Truss, have sworn allegiance to the new monarch.
“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.”
He later spoke of the Queen’s “selfless service”, saying: “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.”
He pledged to “strive to follow the inspiring example” he was set by his mother in taking on the “heavy responsibilities of sovereignty”.
By: Rainbowradioonline.com/Ghana
