An Islamic State-affiliated group claimed responsibility for a large car bomb attack at a national security building in Cairo that wounded dozens.
IS-Linked Group Claims Cairo Bombing

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This photo shows a damaged vehicle after a bomb exploded near a national security building in the Shubra el-Kheima neighborhood of Cairo, Aug. 20, 2015.

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Egyptians examine an engine believed to be from the car that was used in the bombing of the national security building in the Shubra el-Kheima neighborhood of Cairo, Aug. 20, 2015.

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A security official guards the site of a bomb blast at a state security building in Shubra Al-Khaima, on the outskirts of Cairo, Aug. 20, 2015.