GENEVA — The head of a U.N. commission investigating war crimes in Syria says it investigating who was responsible for 14 suspected chemical weapon attacks.
Commission chairman Paulo Sergio Pinheiro says the Geneva-based U.N. probe has not yet determined the exact materials used but is awaiting evidence from a separate team of U.N. chemical weapons inspectors expected to be made public later Monday.
He emphasizes the "vast majority" of casualties in Syria's civil wars is from conventional weapons like guns and mortars.
Pinheiro told reporters Monday the commission believes that President Bashar Assad's government has committed war crimes and crimes against humanity, while it believes that rebel groups have perpetrated war crimes but not crimes against humanity "because there is not a clear chain of command."
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