ISLAMABAD, Pakistan (CNN) -- More than 80 militants attacked a supply terminal in northwest Pakistan that serves U.S. and NATO-led troops in Afghanistan, police said.
The militants used rocket launchers and petrol bombs to torch 10 trailers at the terminal early Sunday in Peshawar, said Warid Khan of the city's police.
An ensuing gun battle with the militants wounded three security guards, said Hassan Muhammad, also of Peshawar police.
Peshawar is the capital of the North-West Frontier Province, which intelligence officials say is rife with Islamic extremists and has been the site of recent clashes between Pakistani security forces and militants.
Because Afghanistan is landlocked, many supplies for NATO-led troops fighting Islamic militants in the area have to be trucked in from Pakistan.
Convoys carrying food and military supplies have regularly come under attack in the area.
CNN's Reza Sayah contributed to this report.