For the killing of an investigative journalist. The Pakistani Taliban has claimed responsibility for an overnight attack on the countrys busiest airport. Karachi airport was under siege for 5 hours. 29 people were killed including all of the 10 attackers. The attack comes weeks after the Pakistani Military renewed a campaign of air strikes. The airport has now been reopened. This report reporter the attack on one of pakistans busiest airports, an armed gang carries out the daring operation after storming the terminal in the international airport. This terminal is used for diplomats and cargo. I witnesses inside the building say they could hear loud explosions and gunfire. They said lay down and hands up in the air. We heard gunshots on and off, on and off and loud blasts. Incoming flights were diverted to other airports as thick clouds of smoke billowed into the sky. The army was called in to help secure the area. Local television showed images of the suicide vests and grenades being r