An air strike killed a commander of Iran's Revolutionary Guards at the Iraq-Syria border sometime between Saturday and Sunday, Iraqi security and local militia officials said on Monday.
They could not confirm the identity of the commander, who they said was killed alongside three other men travelling in a vehicle with him.
The vehicle was carrying weapons across the Iraqi border and was hit after it had entered Syrian territory, two Iraqi security officials separately said.
Iran-backed Iraqi paramilitary groups helped retrieve the bodies, the two officials said, without elaborating or giving the exact time of the incident.