Two new cases are involved.
Another new strain of Covid-19 has been identified in the UK, with two new cases involved.
The identified cases are linked to people who arrived in Britain from South Africa.
Anyone who arrives in the UK from there is being told to quarantine.
British Health Minister Matt Hancock says they have been in touch with South African authorities:
''As part of our surveillance and thanks to the impressive genomic capabilities of the South Africans, we've detected two cases of another new variant of coronavirus here in the UK'', he said.
''Both are contacts of cases who've travelled from South Africa over the past few weeks''.
