Japan has decided to ban all new entries of foreign nationals from December 28 to the end of January following the detection of a new variant of the coronavirus in arrivals from Britain, Japanese media reported on Saturday.

The country has experienced a surge that now includes the new, fast-spreading strain. It reported 3,877 new cases of the coronavirus as of 8:00 p.m. local time on Saturday, taking the total number of confirmed cases to 219,142, according to NHK.

Tokyo itself saw another record of 949 new cases on Saturday, just as Japan heads into the New Year holiday that normally sees people stream from the capital into the provinces.

The country on Friday reported its first cases of a fast-spreading variant in passengers arriving from Britain, which has also been detected in a man who visited the UK and a family member – the first cases of infected people found outside airport checks – Nippon TV reported on Saturday.

Tokyo transport hubs were subdued, local media said, a day after Prime Minister Yoshihide Suga, under pressure as cases continue to climb, urged the nation to stay home and avoid social mixing.

With New Year celebrations centered around family gatherings and mass visits to temples and shrines, experts have warned moderation will be essential to prevent infection rates from rising further amid concerns of pandemic fatigue.

CGTN