Four persons were injured in collision between two oil tankers on National Highway at Hamzay Wali near Sultan City on Monday. Police said that tyres of both the tankers burst after the collision and thousand litres of petrol and diesel gushed out and spread on the road. Rescue 1122 vehicles reached the scene and saved the city from an imminent disaster. The highway remained blocked for traffic for hours with long queues of vehicles on both sides.–The nation Monitoring