Internally displaced persons wait to receive food rations at the UNMISS Protection of Civilian site in Bentiu, Unity State, on February 27, 2015. Unity State is one of the areas most affected by war and famine in South Sudan. PHOTO | AFP
The route runs from El-Obeid, the capital of North Kordofan State, through Heglig to Rebcona, then Bentiu in Unity State.
Unity State boasts of rich oil reserves but has witnessed the bloodiest battles between the South Sudan warring factions since December 2013.