The Ain al-Asad air base in western Iraq, which hosts U.S. and international forces, was targeted by drones and rockets Thursday evening, according to Reuters.
Two security sources told the outlet "multiple blasts" were heard inside the base and it was not immediately clear if the attacks caused casualties or damages.
The area around the base was closed by the Iraqi military, who began a search operation. The attacks are believed to have taken place around the time President Biden delivered an address from the Oval Office.
Rockets hit another military base hosting U.S. forces near Baghdad's international airport, Iraqi police also told Reuters. Further details on that attack were not immediately available.
The Thursday attacks mark four in the past 24 hours targeting Iraqi military bases that host U.S. forces. Two separate drone attacks took place on Wednesday with one causing minor injuries to a small number of troops, according to Reuters. The U.S military was able to intercept the armed drone.