Regime fired chlorine on Idlib, Ghouta: U.N.

The logo of the Organization for the Prohibition of Chemical Weapons (OPCW) is seen during a special session in the Hague, Netherlands June 26, 2018. REUTERS/Yves Herman/File Photo

Syrian government forces fired chlorine, a banned chemical weapon, on a rebel-held Damascus suburb and on Idlib province this year, in attacks that constitute war crimes, United Nations human rights investigators said Wednesday.