A suicide bomber blew himself up close to a police van in northwest Pakistan on Tuesday, killing at least two people, one of them a police officer.
Police officer Nawaz Khan said the blast Tuesday took place in Bannu close to the Afghan border.
He said initial reports suggested the attacker was on foot.
Islamist militants seeking to topple Pakistan's US-allied government have carried out scores of attacks across the country, killing thousands, over the last four years. The military has launched offensives in the northwest where the insurgents are based, but the attacks have continued.