 Thousands of Sudanese are crossing the northern Akhwen border into Egypt as they flee fighting in the country between the army and the paramilitary rapid support forces that erupted in mid-April. Buses are lining up at the border area and families have been sleeping outside in the desert waiting to be let in to the neighboring countries. The Sudanese Health Ministry says at least 512 people, including civilians and combatants, have been killed and another 4,200 wounded since the fighting began.