PESHAWAR: Suspected militants fired rockets, destroying seven fuel trucks at a key border crossing between Pakistan and Afghanistan early on Monday, an official said. The attack took place about 500 metres inside the Torkham border crossing, said local official Hamid Khan. No one was hurt. He said authorities were investigating who was responsible. It was not immediately clear if the trucks were carrying fuel to supply Western forces in Afghanistan. Taliban insurgents often target such supplies. Khan said the attackers fired two rockets at around 4am that blew up two fuel trucks in a parking lot and sparked fires that destroyed another five nearby. Two more fuel trucks were damaged.