The Prohibition of Chemical Weapons (OPCW) said the banned nerve agent sarin was used in an attack in northern Syria in April that killed dozens of people, a report from a fact-finding team showed.
After interviewing witnesses and examining samples, a fact- finding mission (FFM) of the OPCW concluded that "a large number of people, some of whom died, were exposed to sarin or a sarin-like substance.
"It is the conclusion of the FFM that such a release can only be determined as the use of sarin, as a chemical weapon," Reuters cited a summary of the report as saying.
The attack on April 4 in the town of Khan Sheikhoun in northern Idlib province was the most deadly in Syria's civil war in more than three years. It prompted a U.S. missile strike against a Syrian air base which Washington said was used to launch the strike.