Beijing districts placed under lockdown as coronavirus cases mount

Residents and office workers queue up for coronavirus testing in Beijing’s central business district (Andy Wong/AP)

China’s capital began testing millions of residents and shutting down residential and business districts on Monday amid a new outbreak of Covid-19.

While less than 50 cases of coronavirus have been found in Beijing, which has a population of more than 21 million, since the outbreak surfaced on Friday, authorities have implemented extreme measures to prevent its further spread.