Suspected militants on Sunday attacked containers carrying supplies for NATO forces in Afghanistan in south-western Pakistan, officials said. One vehicle was destroyed and another was damaged in separate attacks in two locations, according to a report of DPA. Both incidents took place in volatile Balochistan province, which has seen a surge in violence recently, officials told DPA from the capital Quetta. A container carrying a military vehicle was set ablaze by unidentified attackers on a highway in the Bolan district between Quetta and Chamman, the border crossing into Afghanistan. "Both the container and the vehicle on it were destroyed totally," Zulfikar Ali, a police official in Bolan, said. Separately, militants on motorbikes fired bullets at a truck hauling an oil tank on the main highway between Quetta and Karachi, Pakistan's largest city, to the south. The vehicle was damaged, and the militants escaped before the paramilitary troops arrived at the scene.