SHANGHAI -- Shanghai reported five imported COVID-19 cases and no increase in domestically-transmitted cases on Thursday, the municipal health commission said on Sept 4.

The five cases are all Chinese nationals returning from work or study abroad. They arrived at the Shanghai Pudong International Airport from Singapore, the Republic of Guinea, Mali, the United States and the Philippines, respectively.

All the cases have been transferred to the designated medical institution for treatment, and 95 close contacts have been put under quarantine.

As of Thursday, Shanghai had reported 571 confirmed imported cases and 342 locally transmitted cases.