Emergency services and the police are still on the scene where four trucks were set alight by protesters on Steel Road on Tuesday morning, reports Kempton Express.
It is believed the violence is part of ongoing unrest in the plastic manufacturing sector.
Cars parked on the premises of a chemical company were also stoned. Two occupants of one of the trucks were slightly injured and treated on the scene.
Kempton Express is still on the scene and more information will follow.
The road has been closed from Green Avenue to Steel Road.