S/2018/484 18-08050 5/21 Figure I Key dates in April 2018 12. Turkish forces, along with Syrian non-State armed opposition groups affiliated with Operation Euphrates Shield, continued Opera tion Olive Branch in Afrin, in Aleppo Governorate. The United Nations and its partners continued to res pond to the needs of an estimated, as at 30 April, 137,000 people, who had been reportedly displaced from Afrin district to the Tall Rif‘atarea, Nubl, Zahra’, Fafin and surrounding villages. The lack of freedom of movement of p eople displaced from Afrin remained a major concern, with the population largely prevented from leaving areas of displacement to return to Afrin or reach other locations, including Aleppo city. Security screening procedures by t...