The top United Nation refugee official is in Chad, where Saturday he toured a camp for Sudanese refugees who have fled violence in the western Darfur region.
The French news agency, AFP, says U.N. High Commissioner for Refugees Ruud Lubbers visited Iriba camp - home to more than 15,000 Sudanese civilians - in eastern Chad.
Mr. Lubbers is in the region in an attempt to defuse Sudan's Darfur crisis. He is expected in Sudan on Sunday.
Meanwhile, the U.N.'s top human rights investigator, Louise Arbour, says many Darfur refugees are too afraid to return home. At the end of a week-long visit to the region, Ms. Arbour said displaced civilians do not trust Sudanese officials to protect them against attacks by pro-government Arab militias.
Ms. Arbour will brief U.N. secretary-general on her findings next week.