No new confirmed COVID-19 cases were reported in northeast China's Heilongjiang Province on Sunday, the provincial health commission said Monday.
Two new asymptomatic cases were reported Sunday, bringing the existing number of such cases to 13.
A total of 253 close contacts in the province were still under medical observation.
Heilongjiang had been cleared of confirmed COVID-19 cases as the last patient was discharged from hospital after recovery on May 16.
The province had reported a total of 559 locally transmitted confirmed COVID-19 cases and 386 imported confirmed cases by Sunday.
