HARBIN, April 20 (Xinhua) -- China's Heilongjiang Province Sunday reported three new locally-transmitted confirmed COVID-19 cases and four new imported confirmed cases, the provincial health commission said Monday.

An exit road port in the city of Suifenhe. (Photo: CGTN)

All the four new imported cases were Chinese nationals returning from Russia.

By Sunday, the province had reported a total of 381 confirmed imported COVID-19 cases. It had traced 2,093 close contacts, with 582 still under medical observation.

On Sunday, Heilongjiang also reported three new locally-transmitted asymptomatic cases and zero imported asymptomatic cases. The province had a total of 40 imported asymptomatic cases by Sunday.