The International Criminal Court (ICC) says it has gathered "concrete evidence" connecting leaders of Sudan's Rapid Support Forces (RSF) paramilitary group to war crimes and crimes against humanity committed in Darfur. The ICC's deputy chief prosecutor, Nazhat Shameem Khan, told the BBC the court had achieved a "breakthrough" in its probe into massacres in el-Fasher and el-Geneina — two cities where the RSF is accused of killing thousands of civilians, with the UN estimating over 6,000 deaths in el-Fasher alone after it was seized in October 2024. The development is significant given that Darfur (a vast region in western Sudan that was the scene of a major genocide in the early 2000s) has again descended into mass violence since war broke out between the RSF and Sudan's national army in April 2023, with the UN warning that recent killings bore the "hallmarks of genocide."