BORIS Johnson today hailed the Queen’s service to Britain as she marks her 95th birthday.
The PM said he has the “highest admiration” for the monarch, who has sat on the throne for almost 70 years.
He said: “I would like to send my warm wishes to Her Majesty The Queen on her 95th birthday.
“I have always had the highest admiration for Her Majesty and her service to this country and the Commonwealth.
“I am proud to serve as her Prime Minister.”
The Queen is set to hold a private and low-key celebration today following the death of her “beloved” Prince Philip.
Members of the Royal Family have been supporting her throughout the mourning period, with some expected to visit her at Windsor Castle today.
Her special day falls within the two-week period of royal mourning for the Duke of Edinburgh, which is being observed until Friday.
No official photograph is expected to be released to mark the event.
The pandemic meant the Queen’s official birthday celebration known as Trooping the Colour, normally staged in June, has been cancelled for a second year running.
Last summer, an event dubbed “mini Trooping” was staged at Windsor Castle, and Buckingham Palace has said options for an “alternative parade” were being considered at the Queen’s Berkshire home.