There was no immediate claim of responsibility for the blast, which shattered the windows of the police vehicle and damaged a nearby police post.

 

Anger inflamed

 

Pakistani security forces have also inflamed anger among pro-Taliban  tribesmen in the area bordering Afghanistan after carrying out an air strike on a religious school at the end of October that killed about 80 suspected fighters.

 

Days later, a suicide attacker detonated a bomb among army recruits on a training ground in a nearby northwestern town, killing 42 of them.

 

It was the bloodiest-ever strike on Pakistani security forces.

 

A blast in a passenger van in the eastern city of Lahore later on Friday killed one person and wounded seven, police said.

 

Four of the wounded were in a serious condition.

   

There have been more than half a dozen bombs in Peshawar in recent weeks, including one that killed six people and wounded more than 30 in a crowded market on October 20.