Three Katyusha rockets fell on Tuesday inside Baghdad’s Green Zone which houses government buildings and foreign missions.
The rockets were launched from Zafaraniyah district outside Baghdad, two rockets landed near the US embassy.
Sirens could be heard across the zone immediately after the rockets made impact.
The US has blamed Iran-backed paramilitary groups for a spate of similar attacks in recent months on the Green Zone, but there has never been a claim of responsibility.