Unidentified men in Khyber tribal region on Monday fired rockets on containers carrying supplies for MATO forces in Afghanistan, killing at least five people, officials said.
The drivers and cleaners of the containers were killed as the attackers torched the containers in Jamrud area of Khyber Agency, bordering Afghanistan.
An official said that nearly 15 heavily-armed militants attacked the containers with rockets and automatic arms. They also burnt three containers.
The attackers and security forces also exchanged fire for 30 minutes, witnesses said. The attackers later escaped from the scene. The attack suspended traffic for some hours on the main Torkham road.
No group claimed responsibility for the attack.
Militant groups including the Taliban are accused of attacks on NATO containers in Pakistan. Taliban and Lashkar-e-Islam group are active in the region.
Nearly 70 percent supplies are transported to NATO forces via Pakistan, a shortest and cheaper route.
The US have also signed agreements with Russia and some central Asia states for alternate transit route in view of the attacks in Pakistan on NATO trucks.
The NATO is also using Pakistan route for withdrawal of its heavy machinery before its troops’ withdrawal.