French and Malian soldiers are on high alert in the northern town of Gao, a day after Islamist militants launched an assault to retake the city.
Malian, French Forces Repel Islamist Assault on Gao

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People walk through the heavily shelled police station in Gao, northern Mali, Feb. 11, 2013.

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French and Malian troops man a checkpoint at the entrance of Gao, northern Mali, Feb. 11, 2013.

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A Malian soldier takes cover behind a truck during exchanges of fire in Gao, northern Mali, Feb. 10, 2013.

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French soldiers secure the evacuation of foreigners during exchanges of fire in Gao, northern Mali, Feb. 10, 2013.