Beijing has closed more gyms, malls, cinemas and apartment blocks.
Authorities are ramping up contact tracing to contain a COVID-19 outbreak, while the month-long lockdown in Shanghai continues.
People in various districts have been protesting against the lockdown and difficulties in obtaining provisions.
Beijing’s Chaoyang district, the first to undergo mass testing this week, started the last of three rounds of screening on Friday among its 3.5 million residents.