Hong Kong has ramped up its testing capacity with the help of inflatable mobile laboratories, as the city grapples with tens of thousands of Covid-19 cases daily, AP reports.

The labs arrived from mainland China ahead of a planned city-wide testing of its more than 7 million residents later this month.

It’s part of a “zero-tolerance” Covid-19 strategy enforced in China, and one that Beijing had pressed upon Hong Kong, a semi-autonomous territory that’s been struggling to contain a surge driven by the omicron variant.