The Chinese mainland registered 13 new confirmed COVID-19 cases on Saturday, all of which were imported cases, the National Health Commission said on Sunday.

A staff member (front, L) signs a letter of informed consent at a temporary COVID-19 vaccination site at a company in the ZPark Phase 2 in Haidian District of Beijing, capital of China, Feb. 22, 2021. (Photo: Xinhua)

Of the imported cases, seven were reported in Sichuan, four in Guangdong and two in Shanghai.

Also on Saturday, 11 asymptomatic cases were reported on the mainland, all imported. And a total of 243 asymptomatic patients were under medical observation.

There were 173 active cases as of Saturday. No deaths related to the disease were reported, while 13 COVID-19 patients were discharged from hospitals.

The total number of confirmed cases on the Chinese mainland stood at 89,975 and the cumulative death toll was 4,636 as of Saturday.