Multinational companies have halted some operations as China widens its Covid lockdowns - among its biggest since the start of the pandemic. Tens of millions of people across the country face restrictions, including the entire Jilin province and technology hub Shenzhen, as authorities report record numbers of cases. Toyota, Volkswagen and Apple supplier Foxconn are among the firms affected. The lockdowns have raised concerns that crucial supply chains may be disrupted. China on Tuesday reported a record high of more than 5,000 cases, most of it in Jilin.