Described as the largest single gathering of displaced residents in the world today, tens of thousands of civilians are seeking shelter along the Afgooye corridor outside Mogadishu, according to the United Nations.
Fighting between government forces and Islamist militias has triggered the flight of more than 67,000 Somalis in and around Mogadishu since May 8, the U.N. refugee agency said Tuesday.
Most of them are heading to the Afgooye corridor, a 30-kilometer (19-mile) stretch of ramshackle housing described by the United Nations' World Food Program as "a nightmare." 
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