South Korea is grappling with a resurgence in Covid-19 cases, as a senior official warned it could be the country's largest wave of infections if the spread is not quickly contained.

According to Reuters, the Korea Disease Control and Prevention Agency reported 386 new daily coronavirus cases, bringing total infections to 30,403, with 503 deaths. New cases topped 300 for the fourth day in a row after Tuesday saw the highest since August.

“We are at a critical juncture; if we fail to block the current spread, we could be facing a large nationwide infection that surpasses” the first two waves, senior KDCA official Lim Sook-young told a news briefing.

The standard for imposing tougher social distancing measures was expected to be reached soon, Lim said.