This is the first time for South Korea to confirm cases of the new variant.
Health authorities say the three are family members who flew in from London on December 22nd. On top of that, the authorities are closely monitoring the family of a man in his 80s, who came back from the UK on December 13th and posthumously tested positive for COVID-19.
Three of his family members also tested positive, which prompted the South Korean government to look into whether they contracted the new variant.
The final results are expected to come out during the first week of January.