The head of the World Health Organisation has called for the immediate and unconditional release of health workers who are believed to be detained in south- western Sudan. The Sudanese Doctors Network fears about 19,000 people could be held by Sudan’s paramilitary Rapid Support Forces (RSF) in Nyala, South Darfur. We hear from a journalist there about the situation.

(Photograph: Darfuri children in Tine refugee camp. Credit: Reuters)