The Chinese mainland reported 107 new confirmed COVID-19 cases on Friday, of whom 90 were locally transmitted and 17 were imported, the National Health Commission said on Saturday.

A medical worker collects nucleic acid sample at a testing site in a middle school in Harbin, northeast China's Heilongjiang Province, Jan. 22, 2021. Citizens in Harbin have been undergoing nucleic acid testing for the COVID-19 prevention and control. （File photo：Xinhua）

Of the locally transmitted cases, 56 were detected in Heilongjiang, 15 in Hebei, 13 in Jilin, three each in Shanghai and Beijing.

A total of 4,296 imported cases had been discharged from hospitals after recovery while 293 remained hospitalized, including two in severe conditions, the commission said.