As of 3:30 p.m. Thursday, over 10.4 million samples had been collected in Qingdao City, east China's Shandong Province as the city's five-day nucleic acid testing campaign nears its end. 

With more than 8.84 million samples tested, no new positive cases have been found except the confirmed and asymptomatic cases already reported, a local official said at a press conference on Thursday afternoon.

Sui Zhenhua, the director of Qingdao's municipal health commission, was suspended from his duties, according to the decision made by the municipal committee of the Communist Party of China on Wednesday.