A suicide bomber died in an attack on a police van in the northwestern Pakistan city of Peshawar today.
Neither of the policemen in the vehicle were hurt.
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 20th.
Later, a bomb planted in a rubbish bin exploded at bus station in the eastern city of Lahore killing two people and wounding 14, police said.
There was no claim of responsibility for either of the blasts.
Islamist groups seeking to destabilise the government due to President Pervez Musharraf's alliance with the United States in the "war on terrorism" are suspected of being behind attacks in the northwest of the country in in recent weeks.
Pakistani security forces inflamed anger among pro-Taliban militant tribesmen in the northwest, in areas bordering Afghanistan, with an airstrike on a religious school at the end of October that killed about 80 suspected militants.
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 militant strike on Pakistani security forces.