More than 1 million have been displaced within Sudan, which has a population of 49 million and where heavy fighting has torn through residential areas of the capital Khartoum and violence has also flared in the western region of Darfur.
UNHCR had foreseen about 800,000 Sudanese and 200,000 people of other nationalities leaving Sudan over six months, the refugee agency's head said in an interview in Cairo after a visit to the border with Sudan.
