U.N inspectors said that chemical weapons were probably used in four locations in Syria this year, in addition to the confirmed attack near Damascus in August , but they didn't identify whether the government or opposition fighters were responsible for any of the attacks.
In a report released Thursday, the experts led by Swedish professor " Ake Sellstrom " examined seven alleged chemical weapons attacks and said it lacked information to corroborate the allegations at two locations.
Thursday's report said evidence indicated chemical weapons were probably used in Khan al Assal outside Aleppo, Jobar in Damascus' eastern suburbs, Saraqueb near Idlib in the northwest, and Ashrafiah Sahnaya in the Damascus countryside. In two cases, it found "signatures of sarin ".
In an initial report on 16 Sept , Sellstrom's team concluded that evidence collected in the Ghouta area of Damascus following 21 Aug attack provided "clear and convincing evidence that surface-to-surface rockets containing the nerve agent sarin were used " .
The experts said they collected "credible information that corroborates the allegations that chemical weapons were used in Khan al Assal on 19 March, 2013 against soldiers and civilians." The report said information from medical, military and health personnel corroborated the occurrence of rapid mass poisoning .
But the inspectors said the release of chemical weapons at the site couldn't be independently verified because it lacked "primary information" on how the chemical agents were delivered and because environmental and medical samples weren't scientifically collected, preserved and analyzed.