Dozens of workers at a Foxconn plant in Chengdu, China were arrested this week after a clash with security staff, according to a report.

Dozens of workers at a Foxconn plant in Chengdu, China were arrested this week after a clash with security staff, according to a report.

Taiwan-based Want China Times (WCT) reported that the clash broke out Monday night at a male dormitory for Foxconn workers. Security guards had attempted to stop a thief, when several employees with grudges against the officers forced them away.

The situation rapidly escalated, and up to 1,000 workers eventually joined in, WCT reported. Workers threw trash bins, chairs, pots, bottles, and even fireworks from the upper floors of the building, destroying public facilitates.

The riot ended after two hours, after dorm administrators reported the case to local police and hundreds of officers arrived at the scene to suppress the violence. Dozens were arrested.

In a statement to PCMag.com late Wednesday, Foxconn Technology Group said the incident actually occurred an an off-campus residence.

"We were informed by local law enforcement authorities that late Monday night, several employees of our facility in Chengdu had a disagreement with the owner of a restaurant located in that city," Foxconn said. "We were also informed that the employees subsequently returned to their off-campus residence, owned and managed by third-party companies, at which time a number of other residents also became involved in the disagreement and local police were called to the scene to restore order. Foxconn is cooperating with local law enforcement authorities on their investigation into this incident."

Foxconn, the world's largest electronic contract manufacturer, employs up to 120,000 people at its plant in Chengdu, located in southwestern China. The factory mainly produces liquid crystal displays for electronic products such as Apple's iPhone.

Foxconn has repeatedly come under fire for harsh working conditions. Late last month, a watchdog group released a study that criticized Foxconn for limited freedoms, inhumane treatment, and unsafe working conditions, among other things. An earlier Apple-commissioned report from the Fair Labor Association found abuses at Foxconn facilities, but said that the firm had agreed to make changes.

ABC's Nightline also gained access to a Foxconn factory recently, and did not uncover any particularly shocking conditions, while This American Life was forced to retract a controversial episode about Apple factories in China that featured storyteller Mike Daisey. An explosion at the Chengdu factory last year killed two workers and injured 16 others.

Editor's Note: This story was updated Thursday at 8:40 AM ET to include a statement from Foxconn Technology Group.