Peshawar - Pakistani troops killed up to 35 pro-Taliban militants Saturday after the rebels carried out two bombings in the Swat valley that killed 10 people including four policemen and two children dead, security officials said.

"Between 30 and 35 miscreants were killed and several more were injured when our forces launched offensives in Kabal and Kanjo sub-districts," local military spokesman Major Nasir Ali said.

Two soldiers also died and three were wounded in the clashes, he said adding the troops were backed by the artillery and helicopter gunships.

The military operations came hours after a suicide bomber rammed an explosive-laden car into the outer wall of a police station in a busy market of Charbag area, killing four officers and three civilians.

"The explosion was so huge that it partially damaged around 40 nearby houses and shops," a security official who requested anonymity said.

Malik Naveed, the police chief of the North-Western Frontier Province, confirmed only the deaths of two policemen and said five more were injured.

Thirty-six people were injured in the attack, according to an official at the district hospital in Saidu Sharif.

"Among the injured are 28 civilians and eight policemen," he said.

He added the death toll could rise because several victims were in critical condition.

A remote-controlled bomb exploded at a police check post in the Aboha area of Bari Kot sub-district. The law enforcers had already left the post but two children playing in the adjoining street were killed and three more were injured.

A spokesman for radical cleric Maulana Fazlullah accepted the responsibility of attacks.

"Until the government fully implements the agreement it has signed with us, we will continue carrying out attacks," Muslim Khan said.

Fazlullah's followers launched a campaign in mid-2007 to enforce Taliban rule in Swat, previously a popular tourist destination located just 150 kilometres from Pakistan's capital.

The new civilian government of the secular and liberal Awami National Party opened peace talks with militants in March and signed an agreement with them on May 21.

Under the accord, the government agreed to partially enforce Islamic law, carry out a phased withdrawal of troops from the region, release 75 prisoners within 15 days and build an Islamic University in place of a militants' headquarters destroyed by the military in Imamdheri area.

Fazlullah called off the peace talks a month later and accused the government of delaying the implementation of the agreement.