A fight among 2,000 factory workers broke out Sunday night at a Foxconn Technology Group factory dorm in China, NBC News reports.
The dorm brawl injured 40 people and shut down production Monday, Foxconn said in a statement. There have been reports in Chinese media that 10 people died, but the company has not confirmed any deaths.
The factory employs about 79,000 workers who make electronic components of automobiles and consumers products, including the Apple iPhone 5, according to Reuters.
Photos and videos of the aftermath were captured and shared on Chinese microblogging sites:
Foxconn said the incident began as a personal dispute around 11 p.m. and ended around 3 a.m. But word spread quickly on Chinese blogs that the fight may have been started by security guards who nearly beat a worker to death.
According to China's Xinhua News Agency, 5,000 officers were dispatched to the factory to contain the riot.
This isn't the first time that Foxconn has faced allegations of worker abuse.
The factory could be closed for up to three days.