North China's Inner Mongolia Autonomous Region reported two new asymptomatic cases and one suspected case of COVID-19 in Manzhouli City, health authorities said Wednesday.

The city has collected 203,326 samples in its mass testing covering all residents as of 7:00 a.m. on Wednesday. An epidemiological investigation into the new cases has been launched.

The region suspended inbound and outbound trains and some flights after two new domestically transmitted cases were reported last weekend.