ISLAMABAD, Pakistan  At least six people were killed and more than a dozen were wounded on Monday by a pair of bombs in northwestern Pakistan that were aimed at security forces, officials said.

The first attack took place Monday morning near Peshawar, the capital of the restive Khyber-Pakhtunkhwa Province, formerly called North-West Frontier Province, where security forces are battling the Taliban insurgency. Rasheed Khan, a deputy superintendent of the Peshawar police who had been involved in operations against the Taliban, was killed when a teenage suicide bomber attacked a police vehicle on the outskirts of the city.

Mr. Khan’s driver, a security guard and two pedestrians also were killed, and 10 people were wounded, the police said.