Paris ? Sudan said Wednesday it would allow U.N. Undersecretary Jan Egeland to visit Darfur, three days after barring his flight to a region the United Nations has called site of the world’s gravest humanitarian crisis.

Egeland’s visit to Darfur in western Sudan had been postponed for 10 days for “internal reasons,” the country’s state minister for foreign affairs, Elsamani Elwasilah Elsamani, said in a statement. “We reiterate our commitment to receive concerned officials from the United Nations and all … (others) who are engaged in extending humanitarian aid and assistance,” he said.

The three-year-old conflict setting the Arab-dominated Sudanese government and militias against ethnic African tribes has left some 180,000 dead – most from disease and hunger – and displaced another 2 million people from their homes.