Harbin, capital of northeast China's Heilongjiang Province, has suspended commercial operations in relatively confined spaces and private clinics after 3 new local COVID-19 infection was reported.
The new rule would cover cinemas, bars, theaters, indoor playgrounds, gyms, training agencies offering offline courses, and other commercial operations in relatively confined spaces.
Scenic spots in the city have been asked to limit the number of tourists to 50 percent of the capacity and stop performances.
The Chinese mainland on Tuesday reported 16 new locally transmitted COVID-19 cases, the National Health Commission said in its daily report on Wednesday.
One of the cases was found during nucleic acid testing at a local hospital and the other two are close contacts of the first case.
Thirteen of the new local cases were reported in Fujian and the other three were reported in Heilongjiang.
Also reported were 25 new imported cases, including 14 in Yunnan, six in Shanghai, two each in Fujian and Guangdong, and one in Sichuan, the commission said.
Two new suspected cases arriving from outside the mainland were reported in Shanghai on Tuesday, it said, adding that no new deaths related to COVID-19 were reported.