BEIJING - Fengtai, one of 16 districts of Beijing municipality, on Sunday started district-wide nucleic acid testing as local COVID-19 cases have been reported recently, local authorities said.

The district has found a cluster infection and is facing the risk of community transmission, according to a statement released by the district's COVID-19 epidemic prevention and control headquarters.

Beijing reported nine confirmed local COVID-19 cases and three asymptomatic cases from 4 pm Friday to 4 pm Saturday. Four of the confirmed cases and all three asymptomatic cases are from Fengtai District.

A residential compound in the district was also adjusted from medium-risk to high-risk for COVID-19 on Saturday after the compound registered eight confirmed locally transmitted COVID-19 cases in the 14 days to noon on Saturday.