A third person has been identified with the new variant which was first found in Botswana and tested positive after arriving in the UK which “is linked to travel” to travel from South Africa.
Targeted testing is now being carried out in the areas where the individual had visited, which includes Westminster in Central London.
Dr Jenny Harries the UK Health Security Agency (UKHSA) chief executive, said, “Our advanced sequencing capabilities enable us to find variants and take rapid action to limit onward spread.
“It is very likely that we will find more cases over the coming days as we are seeing in other countries globally and as we increase case detection through focused contact tracing.”
“It’s critical that anyone with Covid-19 symptoms isolates and gets a PCR test immediately,” she added.
On Saturday two cases were confirmed in Brentwood, Essex and in Nottinghamshire and both were linked to have travelled to South Africa.