Under the new rule, arrivals would need to spend five days in a quarantine facility and a further two or three days at home, one of the sources said, compared with the current requirement of seven days in a facility, typically a hotel, and a further three days under home monitoring.

Such a move would follow China’s decision in June to slash quarantine time for inbound travellers by half.

Health officials at the time said the shorter incubation period of the Omicron variant allowed for shorter quarantine times.

Chinese health authorities are set to hold a news conference tomorrow on Covid-19 prevention, according to a notice saying that officials from the national bureau of disease control and prevention would attend.

No other details were immediately available.

China’s national health commission did not immediately respond to a faxed request for comment.

Travel in and out of China has plunged as the country pursues “dynamic zero-Covid” policies that include mandatory quarantine and RT-PCR tests for travellers upon arrival.

International flights to and from China are at a small fraction of pre-Covid levels.