The ruling Communist Party is enforcing a "zero tolerance" strategy aimed at isolating every infected person.
Chinese postal service orders disinfection of foreign parcels over suspected link with Omicron spread
The Communist Party newspaper Global Times cited the Beijing Center for Disease Control and virologists as making the link between the latest infections and packages from abroad.
The city’s COVID-19 prevention and control office said all who have tested positive in the initial testing round were found to have the Omicron variant.
People are being told to travel in and out of Beijing only if they absolutely need to and hotels have largely stopped taking new reservations.