SHANGHAI — Foxconn Technology, a major supplier to some of the world’s electronics giants, including Apple, said it had closed one of its large Chinese plants Monday after the police were called in to break up a fight among factory employees.

A spokesman said some people had been hurt and detained by the police after the disturbance escalated into a riot involving more than 1,000 workers late Sunday.

The company said the incident was confined to an employee dormitory and “no production facilities or equipment have been affected.” It said the cause of the disturbance was still under investigation.

One Foxconn employee reached by telephone Monday afternoon, however, said the incident began when workers started brawling with security guards.