The Chinese mainland on Thursday reported four new locally transmitted COVID-19 cases: two in Jiangsu and the other two in Yunnan, the National Health Commission said in its daily report on Friday.
Also reported were 29 new imported cases, including nine in Guangdong, six in Yunnan, two each in Beijing, Liaoning, Shanghai, Fujian and Henan, and one each in Tianjin, Heilongjiang, Jiangsu and Sichuan.
Two suspected cases, both imported from outside the mainland, were newly reported on Thursday.
No deaths related to COVID-19 were reported on Thursday, the commission added.
Nanjing City, which witnessed the country's latest resurgence of cluster infections of coronavirus attributable to the Delta variant, cleared all medium and high-risk areas for COVID-19 on Thursday.
The city logged no new locally transmitted cases on Wednesday. A total of 235 locally transmitted confirmed cases had been reported in the city as of Wednesday since cluster infections began to emerge on July 20, when a number of airport cleaners were found to be infected during a routine testing, said Ding Xiaoping, deputy director of the Nanjing Health Commission.
Among all the confirmed cases, 75 had been discharged from hospital by the end of Wednesday, according to Ding.
Public transportation in Nanjing including metro lines will gradually resume normal operation. The city once had 32 medium and high-risk areas for COVID-19.