At least three people were killed and a further 18 injured after members of the proscribed Pakistani Taliban (TTP), launched an attack on Karachi's police HQ. Karachi is Pakistan’s main commercial hub, with a population of close to 20 million people. Gunshots could be heard echoing for several hours as police worked to clear members of the TTP from the police station. Two of the three men were eventually killed and one blew himself up, as security forces regained control of the building. 
At least three killed as Pakistani Taliban militants storm police HQ in Karachi
Taliban prisoners in Pakistan overpower guards and take hostages