Islamabad: A bomb blast on a passenger coach in northwest Pakistan on Thursday killed at least seven people and wounded another six, police said.
The bomb was planted beneath a passenger seat and exploded in the outskirts of Peshawar, the region`s main city, while the bus was en route to the town of Hangu.
"At least seven people have been killed and six wounded, the bomb was planted under a seat," senior police official Najeeb Ur Rehman told AFP.
The motive of the attack was yet not clear but police said they suspected a sectarian motive in a region known for Sunni-Shiite violence.
Syed Jameel Shah, a spokesman for Peshawar`s main Lady Reading Hospital, confirmed the death toll.
Peshawar is the gateway to the seven semi-autonomous tribal regions where the military has been battling Islamist militants for more than a decade.
The army launched a major operation in June to destroy bases of the Taliban and other militants in the North Waziristan tribal area.
It says has killed more than a thousand militants and lost 86 soldiers since the start of the current operation.