"Seven missiles were fired at the US base in the Omar oil field, three of them landed inside the base from the southeastern side, the other four missiles landed in the vicinity of the base," a source said on Friday.
Columns of smoke could be seen at the scene, a source added.
Since the escalation of the Palestinian-Israeli conflict in October 2023, the US and coalition forces in Iraq and Syria have been repeatedly attacked by missiles and drones that Washington believes belong to pro-Iranian groups.
Iranian authorities said the armed groups that carry out attacks have nothing to do with Iran and do not receive any orders from it.