Nine people are dead as a result of violence breaking out between police and labor union miners in South Africa on Monday. Two of the dead are policemen, and three others were workers killed by policemen, according to the police.

This violence is the latest in a series of turf war battles between the older National Union of Mineworks, and the younger Association of Mineworkers and Construction Union. A 5,000-strong battalion of rioters demonstrated before dispersing.

The mine, which is owned by platinum producer Lonmin, is located 60 miles northwest of Johannesburg. Shares of Lonmin went down by more than 1.5 percent after the incident, according to NBC.

Previously, two security guards were hacked to death on Sunday outside a mine owned by Western Platinum, and recently two others were burned to death, according to police Brigadier Thulani Ngubane. Other violence also erupted last January at a mine owned by Impala Platinum, resulting in the death of three people and shuttering the mine for six weeks.