Russia's Defense Ministry said Friday it is investigating reports that ISIS leader Abu Bakr al-Baghdadi was killed in one of its airstrikes in Syria last month.
The Russian Defense Ministry said Abu Bakr al-Baghdadi was killed in a Russian strike in late May along with other senior group commanders.
There had been previous reports of al-Baghdadi being killed but they did not turn out to be true.
"According to information, which is being verified via different channels, the meeting was also attended by the (ISIS) leader Ibrahim Abu Bakr al-Baghdadi, who was eliminated in the strike," the ministry said, according to the TASS report in English.
TASS also reported that more than 300 "terrorists" were killed in the strike.
"We cannot confirm these reports at this time," Colonel Ryan Dillon, spokesman for Combined Joint Task Force - Operation Inherent Resolve (CJTFOIR), said in a statement to AP.
BREAKING: US-led anti-Islamic State group coalition says it cannot confirm reports IS leader was killed in airstrike.— The Associated Press (@AP) June 16, 2017
--The Associated Press contributed to this report.