A suicide bomber blew up a vehicle packed with explosives at a checkpoint in a lawless northwestern Pakistan tribal area wounding six people on Friday, an official said.
The bombing took place in the town of Jamrud on a key road between Pakistan and Afghanistan in the semi-autonomous Khyber tribal district, through which trucks pass carrying supplies for NATO forces in Afghanistan.
"A suicide bomber rammed his Toyota Surf car near the checkpoint. Six people, including two tribal policemen were injured," Bakhtiar Mohmand, a tribal administration official told AFP.
The explosion damaged other vehicles nearby and traffic was briefly halted following the attack, he said.
Traffic was suspended on the crucial road across the fabled but militant-infested Khyber into Afghanistan on Tuesday after Taliban militants blew up a bridge built under the British Raj.