Alrayah Ibrahim Eldaw, Alfaris Ibrahim, Dawalbeit Kabbur and Osman Ali Ismael, staff members of non-governmental organization the Sudan Development Organization (SUDO), and Sayed Abu Bakr, a volunteer for SUDO, are being held incommunicado and without charge by security forces in the town of Ed Dain in South Darfur. They are at risk of torture or ill-treatment.