CBRN event in Douma, area, Syrian Arab Republic on Sat 7th April 2018

This third report of the IIT sets out the findings of the investigations conducted in the period between January 2021 and December 2022, focusing on the incident in Douma, the Syrian Arab Republic, on 7 April 2018. On the basis of all the information obtained and its analysis, the IIT concludes that there are reasonable grounds to believe that, between 19:10 and 19:40 (UTC+3) on 7 April 2018, during a major military offensive aimed at regaining control of the city of Douma, at least one Mi-8/17 helicopter of the Syrian Arab Air Force, departing from Dumayr airbase and operating under the control of the Tiger Forces, dropped two yellow cylinders which hit two residential buildings in a central area of the city.