"Two F-15 dropped seven high-precision shells, completely destroying nine objects and partially destroying two, depriving them of their ability to function," RIA Novosti quoted Kirby as saying.
According to him, the Pentagon has preliminary data on the victims.
"But I will not be able to discuss additional details at this point, because we are still evaluating the operation," he added.
Earlier, the Iraqi Ministry of Defense reported that Iraq did not provide US intelligence before the American airstrikes on targets of pro-Iranian groups in Syria.
According to US Secretary of Defense Lloyd Austin, the United States launched a strike in Syria, relying on intelligence from the Iraqi side, and is confident in its accuracy.