SEOUL, South Korea – South Korea has reported its biggest daily jump in coronavirus since the start of the pandemic as people returned from the country’s biggest holiday of the year.

The Korea Disease Control and Prevention Agency said more than 1,750 of the 2,434 new cases reported Friday were from the greater capital area, where officials have raised concern over an erosion in citizen vigilance despite the enforcement of the strongest social distancing rules short of a lockdown since July.

It was expected that transmissions would worsen beyond the capital region during the Chuseok holidays, the Korean version of Thanksgiving which began on the weekend and continued through Wednesday, a period when millions usually travel across the country to meet relatives.

The restrictions in the Seoul metropolitan area prevents gatherings of three or more people after 6 p.m. unless the participants are fully vaccinated.

The country has now reported a daily increase of more than 1,000 for 80 straight days. It’s previous one-day record was 2,221 reported on Aug. 11.