The appeal, which replaces a $23 million drive launched in September, includes programs to provide food, health care, agricultural assistance, relief supplies, water, sanitation, education and protection for more than 700,000 people displaced since fighting erupted early last year.
On April 2, the United Nations also launched an appeal for over $30 million to aid 110,000 Sudanese refugees who fled to neighboring Chad.
The Sudanese government denies allegations by U.N. Undersecretary-General for Humanitarian Affairs Jan Egeland and human rights groups that Arab militia groups, reportedly with Sudanese government backing, are engaged in ethnic cleansing against Africans in Darfur.