Islamic State group has claimed the Las Vegas attack. The group claimed the responsibility of the shooting massacre in Las Vegas was carried out by one of its “soldiers”, who had “converted to Islam” months ago.

"The executor of the Las Vegas attack is a soldier of the Islamic State and he carried out the operation as a response" to calls to target countries engaged in military action against the jihadists, IS’s propaganda outlet Amaq said in online statements.

"The author of the Las Vegas attack converted to Islam a few months ago," Amaq said, in the statements posted on the Telegram online messaging service

 It provided no evidence to back up its claims.