ISLAMABAD - One policeman was killed and three others were injured Monday evening when a suicide bomber blew himself up at the gate of the Special Branch Police Station. The suicide bomber tried to enter the police station located near Sitara Market in Sector G-7 approximately at 9:00pm in a bid to blow up the entire building, police officials said. However, the police guard at the gate of the police station stopped the bomber and seized him, after which he blew himself up thus killing the guard on the spot. The guard has been identified as Faisal Jan Khan. The suicide bomber was also killed in the attack, which was so fatal that it blew the dead bodies into in small pieces visible yards away from the nearby ground. The blast left three other persons injured but none of them received serious wounds. The blast broke down the windowpanes of the nearby buildings and broke away the police station's gate from the outer walls. Interior Ministry Secretary Kamal Shah said that a police guard who apparently seized the attacker has died in the blast. However, there were no immediate reports of any other casualties. DIG Investigation Bin Yameen confirmed that two persons, including the suicide bomber, have been killed in the attack while another official of the police station sustained injuries. Soon after the blast, the law enforcement agencies cordoned off the area and rushed the injured to the nearby hospitals where emergency was declared. Heavy contingents of Rescue 1122, Rangers and Fire Brigade also arrived at the police station. It is important to mention here that the police station is surrounded by well-populated area. The heroic action of the police guard, Faisal Jan Khan, hailing from Peshawar, saved the police station and lives of many others. According to an eyewitness, the guard got hold of the attacker who apparently tried to enter the police station without being checked. However, the attacker succeeded in reaching the entry gate of the police station situated some 100 yards from the road, as there was no security hindrance in his way. The eyewitness also said soon after the blast, he got to the blast spot and witnessed two pairs of legs and empty skull apparently that of the attacker. The injured, Karim, is serving as assistant in the police station, who received injuries at his forehead, but is he stated to be out of danger, an official informed on the spot. Agencies add: Meanwhile, Advisor to Prime Minister on Interior Rehman A Malik Monday said that the suicide blast at the police station near Sitara Market was carried out by one of the of bombers who sneaked into the Capital before the long march. "We had very authentic information that some 15-20 Uzbek suicide bombers were sent by Baitullah Mehsud following a meeting of Tehreek-e-Taliban Pakistan (TTP)," the Interior Advisor told media. "I salute the brave policeman who embraced Shahadat (martyrdom) for showing such act of gallantry," Malik said. Meanwhile, Acting President Farooq H Naek, Prime Minister Syed Yousuf Raza Gilani, Information Minister Qamaruz Zaman Kaira have condemned the suicide bomb attack on the offices of special branch police at Sitara Market in Islamabad. In a statement, he expressed his grief and sorrow over the tragic incident in which a police constable lost his life. In separate messages, they expressed their grief and sorrow over the tragic incident and prayed to Allah Almighty for the blessing of the departed soul and for granting patience and perseverance to the bereaved family of the martyred constable. Lahore police have been put on high alert after tragic incidents of Islamabad and patrolling has been intensified in the city besides deployment of additional force around important government buildings, foreign offices, trade centers, bus and wagon stands. Capital City Police Officer, Haji Habib-ur-Rehman has directed all the divisional SPs to reorganise patrolling system in their respective areas and checking of hotels, guest houses and sensitive places. He also directed to make foolproof arrangements at the entry points of the city as well as checking of suspicious persons and vehicles. He appealed to the people to extend their cooperation for the eradication of terrorism and inform police about criminals or suspicious elements and vehicles on the following telephone numbers. Phone numbers: 9200304, 9202881, 9203997, 9202369, Fax numbers: 9202973, 9204037.