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Turkey Explosion

A police officer clears the area of an explosion in Ankara, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (Mustafa Kirazli/Cihan News Agency via AP) TURKEY OUT

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Turkey Explosion

Security officials and forensic experts at the explosion site in Ankara, Turkey, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (AP Photo/Burhan Ozbilici)

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Turkey Explosion

A police officer stands as security officials close the main roads around an explosion site in Ankara, Turkey, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (AP Photo/Burhan Ozbilici)

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Turkey Explosion

Security officials check a car as they close the main roads around an explosion site in Ankara, Turkey, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (AP Photo/Burhan Ozbilici)

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APTOPIX Turkey Explosion

Firefighters work at a scene of fire from an explosion in Ankara, Wednesday, Feb. 17, 2016. A large explosion, believed to have been caused by a bomb, injured several people in the Turkish capital on Wednesday, according to media reports. Private NTV said the explosion occurred during rush hour in an area close to where military headquarters are located as a bus carrying military personnel was passing by. Several cars caught fire, the report said. Ambulances were seen rushing toward the scene. The explosion caused a large fire and dark smoke could be seen billowing from a distance. (IHA via AP) TURKEY OUT

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Turkey Explosion

Smoke from a fire billows following an explosion as police and rescue services work on the area in Ankara, Wednesday, Feb. 17, 2016. At least five people have died and many others were injured in a large explosion in the Turkish capital on Wednesday, believed to have been caused by a car bomb, Ankara's governor Mehmet Kiliclar said. (Cihan News Agency via AP) TURKEY OUT

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Turkey Explosion

Smoke from a fire billow is seen following an explosion as police officers secure the area in Ankara, Wednesday, Feb. 17, 2016. A large explosion, believed to have been caused by a bomb, injured several people in the Turkish capital on Wednesday, according to media reports. (Cihan News Agency via AP) TURKEY OUT

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Turkey Explosion

Firefighters work at a scene of fire from an explosion in Ankara, Wednesday, Feb. 17, 2016. A large explosion, believed to have been caused by a bomb, injured several people in the Turkish capital on Wednesday, according to media reports. (IHA via AP) TURKEY OUT

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Turkey Explosion

A police officer clears the area of an explosion in Ankara, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (Mustafa Kirazli/Cihan News Agency via AP) TURKEY OUT

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Turkey Explosion

A burning vehicle seen after an explosion in Ankara, Turkey, Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and the parliament are located. (AP Photo)

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Turkey Explosion

In this view across the city of Ankara, Turkey, smoke billows from a fire following an explosion Wednesday, Feb. 17, 2016, after assailants exploded a car bomb near vehicles carrying military personnel in the Turkish capital, killing several people and injuring scores of others, officials said. The explosion occurred during evening rush hour in the heart of city, in an area close to where military headquarters and parliament are located. (IHA via AP) TURKEY OUT

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Turkey Explosion

People react at the scene of an explosion in Ankara, Wednesday, Feb. 17, 2016. A large explosion, believed to have been caused by a bomb, injured several people in the Turkish capital on Wednesday, according to media reports. (IHA via AP) TURKEY OUT