グータ化学攻撃
Åke Sellström told Postol that indeed "the presence of hexamine may mean that this substance was used as scavenger for protons when producing sarin" but that it was a common substance and not conclusive evidence implicating the Syrian government.
Many of the munitions and their fragments had been moved; however, in two cases, the UN could identify the likely launch azimuths. Triangulating rocket trajectories suggests that the origin of the attack may have been within government or rebel-held territory. Consideration of missile ranges influences calculations as to whether rockets originated from the government or rebel-held regions.
反体制派とシリア政府の両者とも2013年8月21日にダマスカス郊外で化学攻撃が行われたと述べている。反体制派はシリア政府がこの攻撃を行ったと主張し、シリア政府はこの攻撃は外国の関与によるものと述べた。