The incident occurred in the town of Naushehra, 80 miles northwest of the capital of Islamabad, the report said. There were also several injuries.

GEO TV quoted the military and police as saying the attacker, riding a bicycle, blew himself up at a checkpoint on a busy thoroughfare outside the army supply center.

The death toll was expected to rise.

The incident is the latest in a series of similar attacks targeting Pakistan's security forces and installations. The attacks began in July after the Pakistan army raided a mosque in Islamabad which had been taken over by Islamic radicals.