A Chinese factory owned by the manufacturer of Apple's iPhones has resumed production after a brawl involving some 2,000 workers highlighted chronic labour tensions in a country that prohibits independent unions. Foxconn Technology Group and police said the cause of the unrest Sunday night was under investigation, but it comes amid a series of violent protests by workers in areas throughout China over grievances about pay and working conditions. Foxconn and police said as many as 2,000 employees were involved and 40 people were reported injured. Foxconn manufactures Apple Inc.'s new iPhone 5, which debuted last week, but declined to say whether the one-day suspension would affect supplies of that model.
