Beijing border authorities have barred four foreigners from entering China due to unspecified violations of COVID-19 prevention and control policies.

Ji Lixia, deputy chief of the city’s border inspection, said Tuesday that incoming passengers may be refused entry to China if they violate quarantine protocol, though she did not say whether this was the case for the four foreigners.

On Tuesday, the Beijing government announced that, in addition to mandatory 14-day quarantines at designated locations, all incoming passengers would also be tested for COVID-19.

Last week, Beijing police canceled the work permit of an Australian national who flouted her home quarantine order to go jogging. (Image: Sixth Tone)