Iran’s Revolutionary Guards on Sunday struck bases of the Daesh in eastern Syria with drones, Iranian state television reported.
It said vehicles, military equipment and ammunition were destroyed in the attack near the Syrian-Iraqi border.
In June, Iran fired missiles into eastern Syria, targeting bases of Daesh which had claimed responsibility for attacks in Tehran which killed 18 people.
The Revolutionary Guards are fighting in Syria against militant groups which oppose President Bashar al-Assad.
Read: Anti-Assad nations say no to Syria reconstruction until political process on track