The diplomatic reception which was due to be hosted by the Queen on Wednesday has been postponed.
Buckingham Palace said the Queen had accepted the Foreign Secretary’s advice to delay the event, which had been due to take place at Windsor Castle.
It is understood the postponement is because of the conflict in Ukraine.
The Queen would have been meeting hundreds of members of the Diplomatic Corps if the event went ahead as planned.
In a statement, Buckingham Palace said: “The Queen has accepted the Foreign Secretary’s advice that the diplomatic reception at Windsor on March 2 should be postponed.”
it comes after the 95-year-old monarch tested positive for Covid last weekend.
Buckingham Palace said she was suffering mild cold-like symptoms and would be carrying out “light duties”.
She was forced to postpone two virtual engagements on Tuesday and Thursday following her diagnosis.
However she was able to hold her weekly audience with Boris Johnson over the phone on Wednesday.
Prince Charles, 73, and Camilla, Duchess of Cornwall, 74, had both tested positive earlier this month.
Both are fully vaccinated and have received a booster shot.
