South Korea reported 2-thousand 1-hundred 11 new cases on Thursday, surpassing the 2-thousand mark for the first time in almost three weeks.
Officials say the recent spike is mostly due to eased restrictions on social gatherings, which started last Monday, and with more people becoming more complacent in regards to prevention measures.
However, authorities are concerned as the spike comes just days before the country is set to lift more restrictions under the new "living with COVID" scheme.
The upcoming Halloween weekend is also putting officials on high alert, as many people are expected to gather to celebrate the event.
Officials have urged those not yet vaccinated, to get a shot.
"There are still many unvaccinated people. COVID-19 can be fatal for those who are not vaccinated. The winter season,which has a higher risk of indoor transmission, is approaching and there are uncertainties regarding variants."
This comes as 100-percent of variant cases transmitted locally last week were the Delta variant.
Meanwhile, Samsung Biologics on Thursday began distributing Moderna vaccines produced under contract in South Korea.
This is the second type of COVID-19 vaccine to be manufactured AND used locally by the country.
Some 2.4 million doses will be supplied in South Korea to vaccinate people in the fourth quarter.
Choi Min-jung, Arirang News.