CBS's security sources reported that two Katyusha rockets were fired toward the base, one of which landed inside the base.
“We can confirm that there was a suspected rocket attack targeting US and coalition forces today at al-Asad Air Base in Iraq,” a Pentagon spokesman said.
“Initial indications are that several American personnel were injured. Base personnel are conducting damage assessments following the attack,” the spokesperson added.
It is unclear how many American soldiers were injured. A senior U.S. military official said no serious injuries, including amputations, had been reported and no soldiers had died.
President Joe Biden has been briefed on the alleged attack, according to a White House official.
In a statement to X, Mr. Biden said he and Vice President Kamala Harris had been briefed in the Situation Room on “the situation in the Middle East.”
“We have received an update on the threat posed by Iran and its proxies, diplomatic efforts to defuse regional tensions, and our readiness to support Israel if it is attacked again,” the president said.
“We also discussed the steps we will take to defend our forces and respond to any attack on our personnel in a manner and location of our choosing.”
The attack comes after the United States carried out airstrikes in Iraq last week, which officials described as an act of self-defense against militants who they said were preparing to launch drones at U.S. and coalition forces in the area.
Tensions have been rising since an explosion at a Tehran guesthouse on Wednesday killed Hamas leader Ismail Haniyeh.
Iran's Revolutionary Guard Corps (IRGC) has accused Israel of killing Haniya and said the United States supported it. Israel has not commented on Haniya's death.
Also last week, Israel said it had killed a senior Hezbollah commander in an airstrike on a southern suburb of the Lebanese capital Beirut.
Both Iran and Hezbollah have threatened to retaliate for the killings by Israel.
The al-Asad base was attacked by Iran-backed militias in January this year, firing ballistic missiles and rockets, most of which were intercepted, U.S. Central Command said at the time.
Several American personnel were examined for traumatic brain injuries after the attack, and at least one Iraqi soldier was injured.
The air base has been used by the United States since the 2004 invasion of Iraq, and has been visited by former Presidents George W. Bush and Donald Trump.
