000 new Omicron cases

More than 10,000 new Omicron cases found in UK

A further 90,418 daily Covid cases have been reported across the UK on Saturday, after days of record highs.

Cabinet ministers have been briefed on the latest Covid data.

London's mayor said he was "incredibly concerned" by the city's infection levels and the major incident was "a statement of how serious things are".

Sadiq Khan said Friday's 26,000 new cases in London were having an impact on staff absences for the capital's emergency services.