The city in the eastern province of Jiangsu reported 18 domestically transmitted cases with confirmed symptoms for Tuesday, up from eight a day earlier, the data from the National Health Commission (NHC) showed.

The case number is small compared with many outbreaks overseas, but Suzhou government, in line with the national policy to contain outbreaks as quickly as possible, has quarantined thousands of people, closed various entertainment businesses and urged residents to reduce trips to outside the city.

The city authority announced it was closing 18 more highway entrances from Wednesday, after closing 15 a day earlier, state television reported. Anyone leaving by train would have to show proof of a negative test result within 48 hours.

Suzhou Industrial Park, which hosts about 100,000 companies and accommodates manufacturing facilities of many multinational firms, began a second round of mass testing on Wednesday, according to state television.

Including Suzhou cases, mainland China reported 46 locally transmitted cases with confirmed symptoms, the NHC said, compared with 40 a day earlier.

There were no new deaths, leaving the death toll unchanged at 4,636.

As of Feb. 15, mainland China had 107,196 cases with confirmed symptoms since the epidemic began in late 2019.

(Reporting by Roxanne Liu, Ryan Woo and Ella Cao; Editing by Simon Cameron-Moore)