The Chinese mainland on Sunday registered 22 new confirmed COVID-19 cases, all from overseas, the Chinese health authority said Monday.

Northwest China's Xinjiang Uygur Autonomous Region reported zero locally transmitted cases on Sunday, for the first time since the resurgence of the virus in the region on July 15.

No deaths linked to the disease were reported on Sunday, while 28 COVID-19 patients were discharged from hospitals.

The total number of confirmed cases on the Chinese mainland stands at 84,849 and the cumulative death toll at 4,634, with 351 asymptomatic patients under medical observation.

The total confirmed cases in the Hong Kong and Macao special administrative regions and the Taiwan region are as follows:

Hong Kong: 4,480 (3,549 recoveries, 69 deaths)

Macao: 46 (46 recoveries)

Taiwan: 484 (450 recoveries, 7 deaths)