Fierce fighting, rampant looting and bureaucracy are hampering efforts to deliver vital humanitarian supplies to millions of Sudanese, according to Médecins Sans Frontières, also known as Doctors Without Borders. The United Nations estimates 25 million people, or more than half the population, now need help, up from 16 million before the army and paramilitary Rapid Support Forces began fighting in April. “Often we cannot move because the warehouse is being looted or because it's unsafe for our staff to move, or because for the transporter it's unsafe to go," Jean-Nicolas Armstrong Dangelser, emergency coordinator with MSF said.