The UK is to close all travel corridors from Monday morning to “protect against the risk of as yet unidentified new strains” of Covid.
Anyone flying into the country from overseas will have to show proof of a negative Covid test before setting off.
It comes as a ban on travellers from South America and Portugal came into force on Friday over concerns about a new variant identified in Brazil.
UK Prime Minister Boris Johnson said the new rules would be in place until at least 15 February.
