PESHAWAR: Six people including four police officers were killed and 14 people wounded in two bomb blasts in Pakistan's northwest on Monday, the first detonated by a teenage suicide bomber.

The suicide attack, which killed five people and left 11 injured, was claimed by the Pakistani Taliban, saying it targeted the police in Peshawar.

The police van was on a routine patrol on the outskirts of the city when it came under attack, senior administration official Siraj Ahmed told AFP.

“The bomber was a teenager, he came on foot and blew himself up near the police van,” Ahmed said.

The attack killed the deputy superintendent of police Rashid Khan, his security guard and driver, while two civilians also died in the blast, officials said.

“We have received four bodies,” the head of Peshawar's main hospital Abdul Hameed Afridi told AFP.

One more person later died of his injuries in the hospital, he said, adding that another seven of the injured were in a serious condition in hospital.

Umar Gul, a police officer at the scene, confirmed the suicide attack.

“We have recovered his head, the bomber was a young boy,” he said.

A bomb disposal squad official said the bomber was carrying six to seven kilograms of explosives, which destroyed the police van.

Another police official was killed and three officers wounded when a roadside bomb went off a short time later near a police van in the suburbs of Peshawar, police officer Ejaz Khan said.

The Tehrik-i-Taliban Pakistan claimed responsibility for the suicide attack.

“We have already announced that we will target police and security forces,” TTP spokesman Azam Tariq said in a telephone call to AFP from an undisclosed location.