Scores of workers have clashed with police at a Covid test kit factory in China, video spreading on social media showed Sunday, as the country navigates a path out of its hardline virus policy. A man who posted video from the scene said in an accompanying caption that many workers had not been paid. Other posts alleged that Chongqing-based pharmaceutical company Zybio suddenly fired workers who had been recruited in recent weeks. AFP could not confirm exactly when the videos were captured, though multiple social media users said the clash took place on Saturday night into Sunday morning. Similar scenes unfolded at iPhone maker Foxconn's factory in central China last year, as furious workers unhappy with a Covid lockdown and pay dispute clashed with police.