South Korea has reported its biggest daily jump in coronavirus since the start of the pandemic as people return from the country's biggest holiday of the year, reports AP.

The Korea Disease Control and Prevention Agency said more than 1,750 of the 2,434 new cases reported are 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.

"It will be crucial to maintain the effectiveness of our anti-virus campaign throughout next week, when the effect of increased travel during the holidays will manifest more clearly," Prime Minister Kim Boo-kyum said during a virus briefing.