Kenya's president says at least 39 people have been killed and more than 150 wounded following an attack by heavily-armed gunmen in an upscale shopping mall in Nairobi.
At Least 39 Killed in Nairobi Mall Attack

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A police officer tries to secure an area inside the Westgate Shopping Mall where gunmen attacked in Nairobi September 21, 2013.

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Security officers secure an area inside Westgate Shopping Mall in Nairobi September 21, 2013.

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An injured woman cries for help after gunmen stormed the Westgate Shopping Mall in Nairobi September 21, 2013.

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Civilians escape an area at the Westgate Shopping Mall in Nairobi September 21, 2013.