Gunmen in northwestern Pakistan have attacked three container trucks that were carrying supplies for NATO troops in Afghanistan, killing two people.
The trucks came under fire on May 5 in the Wazir Dhand area of Khyber, one of seven districts that make up Pakistan's semi-autonomous tribal belt, as they were on their way to Afghanistan.
A local administration official in the region said two drivers were killed and two others were wounded. Hospital officials said one of the injured drivers was in critical condition and had been transported to a hospital in Peshawar for further treatment.
No group immediately claimed responsibility but Pakistani Taliban have claimed responsibility for similar attacks in the past.
Pakistan is a major transit supply route for the NATO-led mission in landlocked Afghanistan.
NATO is winding down operations in Afghanistan with its 51,000 combat troops due to pull out by the end of this year.
With reporting by AFP