BEIJING - Beijing's airports cancelled two-thirds of all flights and schools in the Chinese capital were closed again on Wednesday as authorities rushed to contain a new coronavirus outbreak linked to a wholesale food market.

The city reported 31 new cases on Wednesday while officials urged residents not to leave Beijing, with fears growing about a second wave of infections in China, which had largely brought its outbreak under control.

Tens of thousands of people linked to the new Beijing virus cluster -- believed to have started in the sprawling Xinfadi wholesale food market -- are being tested, with almost 30 residential compounds in the city now under lockdown.

At least 1,255 scheduled flights were cancelled Wednesday morning, state-run People's Daily reported, nearly 70 percent of all trips to and from Beijing's main airports.

According to the Chinese flight-tracking database VariFlight, around two-thirds of inbound flights and more than half of outbound flights at Beijing Capital International Airport were cancelled on Wednesday, while three-quarters of outbound and more than two-thirds of inbound flights at the new Daxing International Airport were cancelled.(FA)