South Korea reported 5-hundred-74 new COVID-19 cases on Thursday.
All but 12 were from local transmissions lifting the nation's total number of cases to more than 125-thousand.
The number of infections reported on Thursday was likely below 6-hundred due to the fewer tests on Children's Day on Wednesday.
The majority of local transmissions were located in Seoul with more than 30 percent of infections.
Seoul alone reported 2-hundred 12 cases.
Outside of the capital 13 students from local high school in Gwangju tested positive on Thursday. Local authorities are urging more than a thousand people at the school to get a COVID-19 test.
Elsewhere authorities are on alert as the UK strain of the virus is spreading in the southeastern port city of Ulsan.
With 12 different cluster infections occurring in Ulsan a total of 76 cases related to UK variant have been reported so far.
Meanwhile, out of 1-hundred 72 South Korean nationals brought back from India one has tested positive for COVID-19.
All arrivals from India must stay in government designated facilities for seven days.
An additional 2-hundred 11 South Korean nationals will travel home on a chartered flight this Friday.
Choi Won-jong, Arirang News.