explosion explosion

Indian authorities inspect a crater left by a suspected meteorite in southern Tamil Nadu state. Local officials say the impact killed a bus driver and injured three others on Feb. 6. STR/AFP/Getty Images hide caption

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STR/AFP/Getty Images

Police officers take positions as they arrive at scene of a bus explosion in the center of Tunis, the capital city of Tunisia, Tuesday. Hassene Dridi/AP hide caption

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Hassene Dridi/AP