SEOUL, South Korea – South Korea has reported more than 1,000 coronavirus cases for the sixth straight day as the greater capital area entered stringent social distancing restrictions to slow transmissions.

The 1,100 new cases reported by the Korea Disease Control and Prevention Agency were the highest ever for a Monday, when the daily increase is usually smaller because of reduced tests during the weekends.

More than 780 of the cases were from capital Seoul and nearby Incheon and Gyeonggi Province, areas where officials have enforced the country’s strongest social distancing measures starting Monday.

Private social gatherings of three or more people will be prohibited from 6 p.m., nightclubs and churches will be shut down, and visitors will be banned at hospitals and nursing homes.

South Korea has added more than 12,100 cases this month alone, brining its caseload to 169,146, including 2,044 deaths. The country last week set record daily increases for three straight days through Saturday, when it reported 1,378 new cases.

The viral surge is a worrisome development in a country where only 30.4% among a population of 51 million have received their first doses of vaccines.