“The camp, which did not exist two months ago, is remarkably well organised. And yet the international community is not doing enough to support them.”

Exactly one year since South Sudan gained its independence, Mary Robinson blogs about the Elders' visit on Saturday to a refugee camp hosting 35,000 people who have fled from recent fighting in the Sudanese state of Blue Nile.

"We are already witnessing an unbearable catastrophe with the fighting in Blue Nile and South Kordofan in Sudan, and the ensuing outpouring of refugees into South Sudan and Ethiopia."

Writing from Addis Ababa at the start of an Elders delegation to Sudan and South Sudan, Desmond Tutu blogs for CNN about the region's urgent humanitarian needs and what he hopes the Elders can achieve on their visit.