More COVID-19 cases are being linked to the large scale outbreak at a missionary school in South Korea's central city of Daejeon.
There are now 1-hundred-71 patients connected with the virus-hit school, run by the Christian missionary 'IM.'
And the number is expected to increase based on the latest analysis.
"The first patients saw their symptoms emerge around January 17th and 19th. The infection rate stands at 80 percent. That means the facility has been exposed to the virus since the beginning of the program on January 4th."
Health authorities will investigate potential virus hotspots such as restaurants and hair salons visited by patients.
They are also monitoring any cross-city transmissions outside Daejeon.
IM operates 22 similar facilities throughout the country, the list of which has been shared with local governments for inspections to be carried out.
Despite fluctuations in daily figures, South Korea has, on the whole, managed to see a downward trend, with average transmission rates decreasing.
"In the past week, the national reproduction rate of COVID-19 was at point-8-2, staying below 1 for the third consecutive week."
On Tuesday cases dropped to 3-hundred-54 from over 4-hundred on Monday.
However, the government remains cautious in easing the current restrictions.
The upcoming Lunar New Year holiday is a major concern, with outbreaks possible from family gatherings.
Discussions will continue until a decision is made later this week.
Lee Kyung-eun, Arirang News.