4 bombers killed in attack on DI Khan DPO's office

A suicide bomber blew himself up as militants armed with guns launched an attack on a police station in northwest Pakistan Saturday, officials said.The attackers targeted the main police station in Dera Ismail Khan city, provincial information minister Mian Iftikhar Hussain told AFP.The body of a suicide bomber was lying at the gate of the police station, he said. Two other militants were also dead.Police spokesman Mohammad Hanif said police shot dead two militants and at least two others blew themselves up.One policeman and three civilians were also reportedly killed.About half a dozen militants stormed the station located in a sensitive area housing government offices, district courts and lawyers offices, he said.They hurled hand grenades and opened fire on the office of district police chief, he said.Authorities summoned troops and commandos ringed the area, police said.A heavy exchange of gunfire erupted between militants and law enforcement agencies. The situation remains tense in the area that mostly houses government offices and courts. A heavy contingent of security forces was still present at the scene late into Saturday night.