Insecurity and logistical difficulties have prompted the United Nations refugee agency to relocate some 3,500 Sudanese refugees from a camp in north-eastern Central African Republic (CAR) to safer areas in the south-central part of the country. Some 500 people have been moved so far in the airlift carried out by the UN High Commissioner for Refugees (UNHCR) and the CAR Government, which began last week and is expected to take about one month.