According to Russian reports, an air strike on May28 may have killed Islamic State leader Abu Bakr al-Baghdadi and up to 330 other fighters.
A statement by Russia’s defence ministry published by the state-funded Sputnik news agency said 30 IS commanders and up to 300 soldiers were at the Raqqa meeting.
“According to information that is checked through various channels, IS leader Ibrahim Abu-Bakr al-Baghdadi, who was killed as a result of the strike, was also present at the meeting,” it added.
Colonel John Dorrian, a spokesman for the US-led coalition, said the US could not confirm whether Baghdadi had been killed.
There has been no official comment from Syria’s government.
Multiple claims of his death have been made in the past which turned out to be false.