File photo: CGTN

SHANGHAI, Aug. 22 (Xinhua) -- Shanghai reported 13 new imported COVID-19 cases and no increase in domestically-transmitted cases on Friday, the municipal health commission said Saturday.

Twelve imported cases are Chinese nationals working, studying or living overseas, and one is a British national.

All the 13 cases have been transferred to designated medical institutions for treatment, and 196 close contacts of the patients on the same flights have been put under quarantine.

As of Friday, Shanghai had reported 533 confirmed imported cases and 342 locally transmitted cases.