PESHAWAR, Pakistan (AP) -- A car bomb has hit a crowded bazar in a northwestern Pakistani tribal region near the border with Afghanistan.

Hospital and government officials say at least 20 people were killed and more than 50 wounded.

The attack took place in the Khyber tribal region near the main border crossing point of Torkham.

TV footage showed the charred skeleton of the car used in the attack and local residents rushing to help take the victims to hospitals.

No one has claimed responsibility for the morning blast, but the suspicion is falling on Pakistani Taliban who often target security forces and public places with bombings and shooting attacks.

The Pakistani army has carried out several operations to flush out Islamist militants in Khyber, which is one of the two routes for NATO supplies across the border into Afghanistan.