The results of Sue Gray's probe into allegations of lockdown-flouting parties look set to be delayed while Scotland Yard carry out an investigation.
Metropolitan Police Commissioner Dame Cressida Dick confirmed the force would look at "a number of events" in Downing Street and Whitehall during the pandemic.
Dame Cressida told the London Assembly today: "What I can tell you this morning is that as a result of the information provided by the Cabinet Office inquiry team and, secondly, my officers' own assessment, I can confirm that the Met is now investigating a number of events that took place at Downing Street and Whitehall in the last two years in relation to potential breaches of Covid-19 regulations."