South Korea has reported daily COVID-19 cases below 100 for a fourth straight day.

The Korea Disease Control and Prevention Agency (KDCA) said on Sunday that 64 new cases were detected throughout Saturday, raising the accumulated total to 24-thousand-91.

Of the new cases, 47 are domestic infections while the remaining 17 are imported.

The daily number dropped by eleven from the previous day, but authorities remain on alert as the figure could surge after the five-day Chuseok holiday due to increased travel during the period.

Of the 47 local cases, 35 came from the capital region, including 16 from Seoul, 14 from Gyeonggi Province and five from Incheon.

Out of the 17 imported cases, nine were detected at quarantine checkpoints at airports or ports, while eight others tested positive during self-isolation.

The number of critically ill patients stands at 105, up one from the previous day.

The number of coronavirus-related deaths rose by one to 421, with the fatality rate at one-point-75 percent.