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

The company said several people were hospitalized and detained by the police after the disturbance, which occurred late Sunday, escalated into a riot.

Unconfirmed photographs and video that was circulated on social networking sites purporting to be from the factory showed smashed windows, riot police and large groups of workers milling about. The Foxconn plant, in the city of Taiyuan, in central China, employs about 79,000 workers.

A Foxconn spokesman declined to specify whether the Taiyuan facility made products for the Apple iPhone 5, which went on sale last week, but he said that it supplied goods to many consumer electronics brands. Foxconn said it employed about 1.1 million workers in China.