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SASOLBURG, South Africa (AP) — Witnesses say that police in South Africa have fired rubber bullets at protesters during a third day of violent clashes.

Hundreds of protesters clashed with police who were trying to prevent the residents from marching to a central business district near the town of Sasolburg, 85 kilometers (50 miles) outside of Johannesburg.

Several people were wounded, including a journalist who suffered a bloody head wound. A protester was run over by a car and left with severe injuries. Police inside the Sasolburg police station were fending off attacks. Police reinforcements were driving to the scene.

The residents are angry over a proposed change in municipal boundaries, which they say could affect the delivery of services. More than 150 arrests have been made since the start of the violence.