Twenty-five trucks carrying fuel to U.S.-led forces in Afghanistan have been destroyed in a possible bomb attack on the Pakistani border. Officials say that dozen of people have been injured.

Mohammed Sadiq Khan, a local government official, said that the explosions and blaze occurred on the Pakistani side of the Torkham customs post late Sunday. At least 50 people were injured, eight of them seriously.

Fida Mohammed, the commander of a paramilitary force that helps provide security at the crossing, said authorities suspect the blasts were caused by bombs, but were still investigating. He said 25 trucks carrying fuel to U.S.-led forces in Afghanistan were destroyed.

Fuel tankers headed for U.S. and NATO bases in Afghanistan have been repeatedly targeted by militants close to the Pakistani border.