South Korea has confirmed three cases of the new virus strain that recently emerged in the UK.
Health authorities said on Monday that the three cases are members of a London-based family who arrived in the country on December 22.
They have been placed in isolation since testing positive for Covid-19 on arrival.
The new strain of the virus emerged earlier this month in Britain and has already reached several European countries, as well as Canada, Jordan and Japan.
The new strain, which experts fear is more contagious, prompted more than 50 countries to impose travel restrictions on Britain.
South Korea was among them and has barred flights from Britain until the end of the year.
South Korean authorities say they are also looking into the case of an elderly South Korean man who posthumously tested positive for Covid-19 after returning from Britain earlier this month.
The announcement came as a third wave of the virus grips the country, with a resurgence centered on the greater Seoul area seeing daily cases climb to over 1,000 several times this month despite stricter distancing measures.