On 23 November 2022 hundreds of workers at Foxconn's Zhengzhou campus, the largest iPhone assembly site, protested against delayed bonus payments and against being required to share dormitories with colleagues who had tested positive for Covid-19. Video showed crowds marching, pulling down quarantine barriers and clashing with hazmat-suited staff and riot police, with tear gas and water cannon used. Foxconn said it had fulfilled its payment contracts and would work with employees and the government to prevent further violence, and it offered newly recruited workers 10,000 yuan to leave. The unrest followed weeks of disruption at the plant over zero-Covid controls and pay.