In this incident two naval personnel namely Shazia daughter of Naeem, and Sub-Lieutenant Muhammad Iqbal son of Ismail were killed and 25 others were injured. The bodies and the injured were transported to PNS Shifa. Following this blast, heavy contingent of police, rangers and teams of investigation agencies and officials of Bomb Disposal Squad (BDS) rushed to the spot and cordoned off the area. They collected bomb samples to ascertain the modus operandi and nature of the blast.
About eight minutes after the first blast, another bomb, which was planted in a garbage drum near Northern Bypass in the limits of Maripur police station, went off near a naval bus, carrying 35 passengers (JP-1270). Also detonated by a cell phone, this blast claimed the live of two more naval personnel and injured some 35 others.
Police and BDS officials said that they had found another 10 kg explosive material in that garbage drum, which was later defused. They said that same explosive material and method, which was used in Chelum blast, was used in both blasts and added that the former bomb carried nuts while latter contained only bolts.
They suspected that the blasts might have be made by Tehrik-e-Taliban Pakistan or Lashkar-e-Jhangvi, and added that both bombs had 4 kg of high explosive material. Meanwhile, Defence police registered a case (158/11) under sections 3/4 of Explosives Act and sections 302, 324, 427 and 788 of Pakistan Penal Code against unknown terrorists on the complaint of naval bus driver Ghulam Sabir and initiated probe in this connection. Maripur police registered case 148/11 on the complaint of Lieutenant Commander Tariq Abbas.
AP adds: Militants bombed two Pakistani navy buses taking employees to work on Tuesday, killing four people and again bringing their war to the streets of the country's largest city. The roadside blasts took place roughly 15 minutes apart in different areas of the southern city of Karachi, the country's economic heart, said Navy Commander Salman Ali. More than 50 people were wounded. The victims included naval officers and employees of the force, said Ali, adding one of the dead was a female doctor.
Taliban spokesman Ahsanullah Ahsan claimed responsibility for the attacks in a telephone call to an Associated Press reporter from an undisclosed location. He said they would keep up the strikes as long as the Pakistan army continued to attack the group in the north-west.