ABHA/DHULUM – Two trucks, one carrying hazardous materials, collided in Asir Region Sunday when one of the drivers dozed off at the wheel and swerved into a truck coming from the opposite direction. Both drivers were killed on the spot. It took Civil Defense rescue teams extensive efforts to remove the dead bodies from the mangled wreckage. Meanwhile, a mother died and her son sustained severe injuries in a car accident in Taif. The 20-year-old son was driving when he swerved to avoid a large puddle of water on the road. He lost control of the vehicle and crashed into an oncoming car. The mother was immediately transported to the hospital where she died. The son was taken to the hospital by relatives, he remains in critical condition.