Members of the RSP launched a coup on 16 September 2015, detaining President Michel Kafando and Prime Minister Isaac Zida. On 17 September, Diendéré was appointed as Chairman of the National Council for Democracy, the new military junta. However, the junta failed to consolidate its authority across the country and faced pressure from regional leaders, and eventually from the regular army. At least 270 people were wounded and 17 people killed as a result of the coup.