Authorities suspect the Islamic State group was behind an apparent suicide bombing Monday in Suruc, in southeastern Turkey, that killed 31 people and wounded nearly 100.
Islamic State Group Suspected in Turkey Blast

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This couple reacts to tear gas used by riot police to disperse the crowd when a demonstration by protesters blaming the government for a suspected Islamic State suicide bombing turned violent, central Istanbul, Turkey, July 20, 2015.

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A man lays flowers at the makeshift memorial shrine at the site of a Monday explosion in the Turkish town of Suruc near the Syrian border, July 21, 2015.