A couple living in Incheon are suspected to be been confirmed with the Omicron variant of COVID-19.
They visited Nigeria from November 14th to 23rd and tested positive upon arrival in South Korea on November 25th.
The couple both received their second Moderna jabs last month.
Genome analysis is underway with the results expected to come out on the evening of Wednesday December 1st.
Two others who picked them up from the airport were also confirmed with the virus, and are suspected to have the new variant as well.
Health authorities are currently tracing the people who were on the same flight.