The Queen has invited Prince Harry and Meghan Markle to her 95th birthday celebration in the first royal reunion since the pair left the British royal family.

The Queen, 94, is set to get "back to business" after being forced to cancel a range of royal engagements due to the coronavirus pandemic.

She invited the pair to join her for Trooping The Colour on June 12th to mark her official birthday, according to The Sunday Times.

Royal aides told the newspaper as the event is both an official and a “family occasion”, the Duke and Duchess of Sussex are expected to join the Queen at the event.

Last year's Trooping the Colour ceremony was a laidback affair and for the first time in 125 years, the ceremony took place at Windsor Castle where she continues to isolate with Prince Philip.

Prince Harry and Meghan Markle were due to meet the Queen in March for their 12-month review, but this meeting was cancelled due to coronavirus restrictions.

It is currently unclear whether the current meeting will go ahead due to coronavirus cases spiking in the UK, with 3 million citizens tested and 81,000 deaths due to the virus.