BEIJING — China is reporting nine new coronavirus cases in the vast Inner Mongolia region, where authorities have closed schools, suspended flights, shuttered public venues and banned banquets and other gatherings.

The cluster has been centered on Manzhouli, a city of more than 200,000 people on the border with Russia. Authorities ordered testing of all residents to detect new cases after the country’s latest local outbreak first emerged late last week. Ground transport to and from the city has been largely cut off and movement around the city restricted.

Elsewhere in China, local infections have also been reported lately in the financial hub of Shanghai and the northern port of Tianjin, although the government’s pandemic update Thursday listed no new cases in those cities.