KHI is located in Karachi

On 8 June 2014, 10 militants armed with automatic weapons, a rocket launcher, suicide vests, and grenades attacked Jinnah International Airport in Karachi, Pakistan. 36 people were killed, including all 10 attackers, and 18 others were wounded. The militant organisation Tehrik-i-Taliban Pakistan (TTP) initially claimed responsibility for the attack. The attackers were foreigners of Uzbek origin who belonged to the Islamic Movement of Uzbekistan (IMU), an Al Qaeda-linked militant organisation that works closely with TTP.^[3][4] The TTP later confirmed that the attack was a joint operation they executed with the IMU, who independently admitted to having supplied personnel for the attack.^[5][6]

• http://en.wikipedia.org/wiki/2014 Jinnah International Airport attack