In this photo taken Friday, May 27, 2011 and released May 28 by the United Nations Mission in Sudan (UNMIS), Dinka Ngok civilians needing medical assistance, some suffering from gunshot and machete ... more 
In this photo taken Friday, May 27, 2011 and released May 28 by the United Nations Mission in Sudan (UNMIS), Dinka Ngok civilians needing medical assistance, some suffering from gunshot and machete wounds, who were internally-displaced as a result of the recent conflict, arrive in the town of Turalei after being airlifted from Abyei by UN helicopter, in Sudan. Tens of thousands of Sudanese are fleeing from the contested north-south border region of Abyei, and the top U.S. official in the region warned Friday of a humanitarian crisis over the north's invasion. less 
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Associated Press | Photo By UNMIS, Stuart Price
Sat, May 28, 2011 9:39 AM EDT