The Queen has tested positive for coronavirus, Buckingham Palace has said.
The monarch, 95, is experiencing mild cold-like symptoms and expects to continue light duties at Windsor this week, the palace said.
She is understood to be triple vaccinated.
The Queen was in direct contact with Prince Charles the week the heir to the throne tested positive for COVID for the second time.
Others at Windsor are understood to have contracted COVID.
Sky’s royal correspondent Rhiannon Mills said: “I understand that a number of cases have been diagnosed within the Windsor Castle team.