Iraqi officials say at least 15 rockets have slammed into a former military base near the Baghdad International Airport.
The rockets hit on October 29 at Camp Liberty, a former U.S. base that now houses members of an exiled Iranian opposition group -- the Mujahedin-e Khalq Organization (MKO).
A police official said the rockets landed far enough from the airport that they did not disrupt commercial traffic, but casualties were reported.
No group claimed responsibility for the attack.
Tehran considers the MKO a terrorist group.
The MKO sided with Iraq during the 1980-88 Iran-Iraq War and was behind several attacks against Iranian officials in the 1980s.