This picture, released by the United Nations Mission in Sudan (UNMIS), shows UN peacekeepers patrolling the Todach area, north of Abyei, on May 30, 2011. The top tribal chief in the flashpoint Abyei region disputed by Sudan and South Sudan was killed Saturday in an incident involving a rival tribe, leaders from both groups said.
UN peacekeepers patrol the Todach area, north of Abyei, on May 30, 2011
