Twin bombings targeting the police in the northwest Pakistani city of Peshawar killed five people, including a senior police officer.

In the first attack, Deputy Superintendent of Police Rasheed Khan, his driver, a guard and a passer-by were killed and seven others injured when a suicide bomber, traveling on foot, detonated 15 pounds of explosives, police official Shafqat Malik said, The Associated Press reported.

Just miles from the first attack, terrorists detonated a roadside bomb as a patrol car passed by, killing one policeman and injuring three others, police official Fazle Wahid said.

No terror group has claimed responsibility for the bombings, but police suspect the Pakistani Taliban, who are heavily entrenched in the country's  northwestern tribal area near Peshawar.

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AP contributed to this report.