China's capital Beijing has further tightened its Covid-19 restrictions, with zero community transmission the target, punishing workplaces that flout rules or circumvent curbs and imploring residents to police their own movements.
Since late April, the city of 22 million has had dozens of new cases a day. While these have been mostly in quarantine areas, a handful have been found in the community at large.
With Shanghai, China's business and commercial hub, and numerous other giant cities also shackled by partial lockdowns or other curbs, the zero-Covid approach remains the government's focus, despite the damage it has done to the world's second-biggest economy and global supply chains.
This week, the city has stepped up quarantine efforts and clamped down on workplace attendance, with more districts issuing work-from-home requirements or guidance.