The Organization for the Prohibition of Chemical Weapons (OPCW) said in a report released on Monday that it had “reasons” to believe that the Syrian Air Force dropped a bomb loaded with chlorine gas on a residential neighborhood in the opposition-held Idlib governorate in February 2018.
There was no immediate comment from the Syrian government, which has long denied accusations of using chemical gases in the conflict in the country for about 10 years.
The new report prepared by the organization’s investigation unit said that there were no deaths as a result of the accident, but it stated that on the evening of February 4, 12 people were treated for symptoms similar to those resulting from chemical poisoning.
Chlorine is not considered an internationally banned chemical, but the use of any chemical substance in armed conflict is prohibited under the Chemical Weapons Convention signed in 1997.
In April 2020, the organization concluded that Syrian warplanes and a helicopter had dropped bombs containing chlorine gas and the nerve gas sarin on a village in Hama governorate in March 2017.