On VOA 60: Search and rescue teams continued working Thursday in Libya’s eastern city of Derna, where the mayor, Abdel-Raham al-Ghaithi says the death toll caused by recent floods could reach up 20,000 people. Plus, United Nation’s envoy in Sudan, Volker Perthes, Thursday stepped down from his post, four months after the Sudanese government called for his evacuation. This and other African related news updates on today’s VOA 60!