(File photo: social media)

The Chinese mainland registered 30 new COVID-19 cases on Thursday, of which eight were domestically transmitted and 22 were imported, the National Health Commission said on Friday.

The domestically transmitted cases were all reported in Xinjiang Uygur Autonomous Region, the National Health Commission said in its daily report.

Also on Thursday, 28 asymptomatic cases were reported on the mainland. And a total of 309 asymptomatic patients are under medical observation.

There were 690 active cases, including 39 in critical condition on Chinese mainland as of Thursday, with five suspected cases. No deaths related to the disease were reported, while 64 COVID-19 patients were discharged from hospitals.

The total number of confirmed cases on the Chinese mainland stands at 84,786 and the cumulative death toll is at 4,634.