Nine months ago, UN teams in Sudan were forced to evacuate from their headquarters in Khartoum, as heavy fighting between government and rebel forces raged in the capital.

The impact on the civilian population has been catastrophic, with half of the population in need of aid and more than seven million people forced to flee their homes. The security situation is so bad that humanitarian workers have been unable to bring aid to the areas worst hit by fighting.

Peter Kioy, the head of the UN migration agency, IOM, in Sudan, told Conor Lennon from UN News about his team’s perilous evacuation under fire, his fears of the fighting moving closer to the UN temporary bases and his frustration at being unable to reach those in desperate need of help.