United Nations investigators have listed a wide range of crimes against humanity and war crimes committed in Syria, but provided no conclusion on the issue of chemical weapons use.
"On the evidence currently available, it was not possible to reach a finding about the chemical agents used, their delivery systems or the perpetrators," the team probing human rights violations in Syria said in its latest report on Wednesday.
It was clear however that "the majority of casualties result from unlawful attacks using conventional weapons," the Commission of Inquiry on Syria said in a statement.