South Korea reported one-thousand-46 new COVID-19 cases on Tuesday, climbing above one-thousand again after two days below that mark.
The Korea Disease Control and Prevention Agency(KDCA) said that the new infections raised the country's accumulated caseload to 58-thousand-725.
Of the new cases detected throughout Monday, one-thousand-30 were local transmissions, while 16 were imported.
The rise in the daily figure is attributed to the outbreak of a massive cluster at the Dongbu Detention Center in eastern Seoul, which reported 233 new cases on Monday.
More than 800 cases came from the wider capital region including 519 in Seoul, 251 in Gyeonggi Province and 32 in Incheon.
Forty more people died from COVID-19 on Monday, bringing the death toll to 859 and marking the largest daily total since the outbreak started in January. The fatality rate stands at one-point-46 percent.
The number of critically ill COVID-19 patients also jumped by 35 to hit a total of 330.