Kenyan police order bystanders and media away from an overlooking hill as a plume of black smoke billows over the Westgate Mall, following large explosions and heavy gunfire, in Nairobi, Kenya Monday, Sept. 23, 2013. Four large blasts rocked Kenya's Westgate Mall on Monday, sending large plumes of smoke over an upscale suburb as Kenyan military forces sought to rescue an unknown number of hostages held by al-Qaida-linked militants. (AP Photo/Ben Curtis) / AP
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