Staff members conduct disinfection at an airport in Shangri-la of Diqing Tibetan Autonomous Prefecture, southwest China's Yunnan Province, March 17, 2020. (File photo: Xinhua)

Chinese health authority said on Sunday it received no report of fresh local transmissions but two imported cases on Saturday. 

The Chinese mainland registered no deaths and no suspected case on Saturday.

According to the National Health Commission, two people were discharged from hospitals after recovery, while the number of severe cases stood at three.

As of Saturday, the mainland had reported a total of 1,740 imported cases. Of the cases, 1,692 had been discharged from hospitals after recovery, said the commission.

Also on Saturday, three new asymptomatic COVID-19 cases were reported on the mainland, including one imported. The commission said 389 asymptomatic cases were still under medical observation, including 25 from abroad.