At least six persons were killed and 54 injured in a deadly suicide attack on Mandan police station in Bannu district on Saturday morning, police said. The suicide bomber rammed his mini-truck packed with explosive with the main gate of the building of police station at 6:20 a.m. that shattered its structure. As result of which six persons including an inmate were killed and 54 others injured. Police said that 23 policemen also sustained injured. The police soon after the incident cordoned off the area and started search operation. The building of police station was badly damaged in the deadly attack. The injured persons are being shifted to hospital and condition of several victims was stated to be critical. Qari Hussain, a Taliban commander who trains suicide bombers, called media by telephone to take responsibility for the attack and warned of more to come. "The government was taking undue advantage of our silence. We will carry out more such attacks and these will be much more powerful," Hussain said, introducing himself as top spokesman of Pakistani Taliban chief, Hakimullah Mehsud. Hakimullah was appointed chief of Tehrik-e-Taliban Pakistan, or Taliban movement of Pakistan, a loose alliance of around 13 militant groups, after the death of his predecessor, Baitullah Mehsud, in a missile strike by a pilotless U.S. drone in South Waziristan on the Afghan border in August.