Report: OPCW Watchdog Attributes 2015 Syria Chemical Attack To ISIS
The Organization for the Prohibition of Chemical Weapons (OPCW) stated on 22 February that there are "reasonable grounds" to believe that ISIS perpetrated chemical weapons attacks on the town of Marea, close to Aleppo, in 2015.
The Investigation and Identification Team (IIT) of the watchdog determined that ISIS militants utilized sulphur mustard in attacks across various parts of the town on 1 September 2015.
According to a OPCW report, ISIS units deployed sulphur mustard gas via their artillery munitions on the town of Marea between 9:00 and 12:00 pm.