The Duchess of Cornwall is self-isolating after testing positive for Covid-19, Clarence House has confirmed.

Her husband, the Prince of Wales, tested positive for the virus on Thursday  but Camilla, 74, carried out three public engagements on that day after testing negative.

Prince Charles met the Queen two days before that but a royal source said on Thursday she was showing no symptoms.

A Clarence House spokesman said they would follow government guidelines.

It is the first time the duchess has caught coronavirus, while Prince Charles has the virus for a second time.