The Chinese mainland on Sunday reported 38 new locally transmitted COVID-19 cases, the National Health Commission said in its daily report on Monday.
Of the new local cases, 28 were reported in Inner Mongolia, seven in Heilongjiang, two in Yunnan and one in Hebei.
Also reported were 23 new imported cases in seven provincial-level regions, according to the commission.
Harbin, capital of northeast China's Heilongjiang Province, has designated three more neighborhoods as medium-risk areas for COVID-19 starting Sunday.
Harbin currently has 17 medium-risk areas across the city, according to the city's anti-epidemic headquarters.
The provincial health committee reported 10 locally transmitted COVID-19 cases on Saturday, all in Harbin. The province has a total of 29 local cases and one asymptomatic carrier, according to the committee.