Middelburg: Four people were killed in a nine-vehicle collision on the R555 near Middelburg, the Mpumalanga Department of Community Safety, Security and Liaison said. According to South African Government News Agency, it is alleged that an articulated truck traveling from Middelburg towards Emalahleni on the R555 seemingly lost control and collided with one of the vehicles. Several other vehicles then collided with each other and further crashed into steel that had fallen from the truck. The incident occurred on Monday afternoon. Five other people sustained serious injuries, while three others suffered slight injuries. The injured are currently receiving medical treatment at nearby hospitals in Middelburg and Emalahleni. The crash involved nine vehicles, including an articulated truck, four light delivery vehicles (LDVs), one SUV, and other motor vehicles. The investigation into the cause of the crash is underway, the provincial department said.