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A unidentified child awaits treatment at a field hospital of Doctors Without Borders, MSF, in the town of Dadaab, Kenya, Monday, July 25, 2011. A U.N. agency is hosting an emergency meeting in Rome on Monday July 25, to mobilize action to fight famine in Somalia, Kenya and other drought-hit nations in East Africa, estimating that more than 11-million people need help in the drought-hit region. (AP Photo/Schalk van Zuydam)

A unidentified child awaits treatment at a field hospital of Doctors Without Borders, MSF, in the town of Dadaab, Kenya, Monday, July 25, 2011. A U.N. agency is hosting an emergency meeting in Rome on Monday July 25, to mobilize action to fight famine in Somalia, Kenya and other drought-hit nations in East Africa, estimating that more than 11-million people need help in the drought-hit region. (AP Photo/Schalk van Zuydam)

Aid workers rush to help East Africa's hungry

Officials warn as many as 800,000 children could die across the Horn of Africa due to hunger and drought. (AP)