Turkey declares a national day of mourning, one day after two explosions in Istanbul killed at least 38 people and wounded many others.
Bombs Target Turkish Police

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Police officers comfort each other after explosions near the Besiktas football club stadium Vodafone Arena in Istanbul, Dec. 10, 2016.

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Turkish policemen are at the site of an explosion in central Istanbul, Dec. 10, 2016.

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Police officers and ambulances fill the street next to the Besiktas football club stadium, Dec. 10, 2016.

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Police arrive at the site of an explosion in central Istanbul, Dec. 10, 2016.