Pakistani police say Taliban militants have set fire to about 10 trucks carrying cement to Western forces in neighboring Afghanistan.
Authorities say the trucks were in terminals near the northwestern Pakistani city of Peshawar.
Officials say gun battles erupted at the scene early Sunday. Media reports say several guards or truck drivers were wounded in the attack.
Militants in Pakistan frequently attack cargo terminals and other stops used by vehicles taking supplies to Western troops in land-locked Afghanistan through the Khyber Pass.
Scores of trucks have been damaged, while several people have died, adding urgency to the U.S. efforts to find safer routes.
In other news, authorities say Pakistani filmmaker Satish Anand was freed by his captors Saturday, six months after he was abducted in Karachi. Media reports say he was released after a ransom payment was made.
Six people have been detained in connection to the kidnapping.
