Police investigating the lockdown parties in Downing Street are contacting more than 50 people who attended and asking them to give an account of their presence.
Boris Johnson and his wife Carrie are thought to be among those who have been given seven days to give an honest explanation to the police about the rule-breaking parties.
The Metropolitan Police said the inquiry named Operation Hillman would be sending notices asking for “an account and explanation of the recipient’s participation in an event”.
