Pakistan Army soldiers sit on a vehicle as they arrive at Jinnah International Airport in Karachi
Pakistan Army soldiers sit on a vehicle as they arrive at Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports on Sunday and at least 23 people were killed, including all 10 of the attackers, media reported. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Policeman with a gun stands guard on a vehicle as smoke billows from Jinnah International Airport in Karachi
REFILE - CORRECTING SPELLING ERROR IN FIRST SENTENCE A policeman with a gun stands guard on a vehicle as smoke billows from Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Policeman with a gun stands on a vehicle as smoke billows from Jinnah International airport in Karachi
REFILE - CORRECTING SPELLING ERROR IN FIRST SENTENCE A policeman with a gun stands on a vehicle as smoke billows from Jinnah International airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY)
Smoke billows from Jinnah International Airport in Karachi
Smoke billows from Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Militants attack airport in Pakistan's Karachi, 23 dead -media
PAKISTAN-AIRPORT/ATTACKS (UPDATE 3):UPDATE 3-Militants attack airport in Pakistan's Karachi, 23 dead -media
Policeman with a gun stands guard on a vehicle as smoke bellows from Jinnah International Airport in Karachi
A policeman with a gun stands guard on a vehicle as smoke bellows from Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Paramilitary soldiers arrive at Jinnah International Airport in Karachi
Paramilitary soldiers arrive at Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Police commandos take up positions as they arrive at Jinnah International Airport in Karachi
Police commandos take up positions as they arrive at Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Pakistan Army soldiers arrive at Jinnah International Airport in Karachi
Pakistan Army soldiers arrive at Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)
Paramilitary soldier stands in position outside Jinnah International Airport in Karachi
A paramilitary soldier stands in position outside Jinnah International Airport in Karachi June 9, 2014. Gunmen attacked one of Pakistan's biggest airports in Karachi on Sunday, killing at least five people, police said. REUTERS/Athar Hussain (PAKISTAN - Tags: TRANSPORT CIVIL UNREST MILITARY)