South Korea has reported 49 new cases of COVID-19, continuing a resurgence over several weeks that has alarmed a nation where millions of children have begun returning to school.
The figures announced by the Korea Centres for Disease Control and Prevention brought national totals to 11,590 cases and 273 deaths.
All but one of the new cases were reported from the densely populated Seoul metropolitan area, where hundreds of infections have been linked to entertainment venues, church gatherings and a massive e-commerce warehouse.
Mayors and governors in the greater capital area have shut thousands of nightclubs, hostess bars, karaoke rooms, churches and wedding halls to slow the spread of the virus.
But despite the spike in transmissions, the government has been pushing ahead with a phased reopening of schools, which began with high-school seniors on May 20.
Class openings were planned on Wednesday for nearly 1.8 million children.
Meanwhile South Korea has approved imports of the anti-viral drug Remdesivir for coronavirus treatment.
Elsewhere, China has reported four new confirmed coronavirus cases, one brought from abroad and three added retroactively after tests returned positive results.
However, the country's overall count fell by one to 83,021 after five other cases were eliminated.
No new deaths were reported.
Australian Associated Press