No 10 says PM was 'already at Chequers' when told to isolate - as Starmer slams initial bid to 'dodge' quarantine

Downing Street has said the prime minister was already at his country retreat when he was contacted by NHS Test and Trace and told to isolate - as Labour leader Sir Keir Starmer labelled Boris Johnson and Chancellor Rishi Sunak's initial decision to "dodge" quarantine as "crass and insensitive".