Is the Omicron Covid variant in Crawley, Horsham and Mid Sussex? Interactive map shows where coronavirus strain has been detected

Thirteen cases of the variant, which may be more infectious, have been found in England with a further nine in Scotland, Boris Johnson told a Downing Street press conference on Tuesday (November 30) afternoon.

You can see our interactive map below showing where the Omicron variant is in the UK.

Health chiefs fear existing vaccines could be less effective against the new mutation.

Health Secretary Sajid Javid said it was not known whether the most recent Omicron cases identified in the UK were linked to travel in South Africa.

He told the press conference: “The cases that we identified at the start of the weekend, we were able to confirm quickly that they were linked to travel to South Africa. They were also part of one sort of family cluster.

“The recent cases that we’ve confirmed today, we’re not able to say whether or not, at this point … we don’t know, we’re doing that work right now at speed to determine whether they all have a link to South Africa or not.