Jamal Benomar, the UN envoy to Yemen who brokered the deal that ended Ali Abdullah Saleh's presidency during the 2011–12 revolution, resigned on 15 April. Mauritanian diplomat Ismail Ould Cheikh Ahmed, formerly the head of the UN's Ebola response mission, was confirmed as the new UN Envoy to Yemen on 25 April. The Panel of Experts on Yemen mandated by the Security Council, UN submitted a 329-page report to the latter's president on 26 January 2018 denouncing the UAE, the Yemeni government and the Houthis for torturing civilians in the Yemeni conflict.