RUSTENBURG, South Africa — Violent protests by farm workers have erupted in South Africa after weeks of unrest in the country's mining industry.

Television images showed protesters overturning a police truck and settting fires in the streets Wednesday in a town in South Africa's Western Cape.

The workers have been protesting their wages, saying they want a minimum wage of $17 a day. Currently, workers make about half that amount daily.

Agriculture is one of South Africa's biggest industries, as is mining. Miners first protested over wages in August at Lonmin PLC's Marikana platinum mine outside of Rustenburg, sparking violence and a mass shooting by police that left 46 people dead.

Unrest then spread.

Workers on a weeks-long strike at Anglo American Platinum gathered Wednesday to discuss their own negotiations for higher raises.