"The Katyusha rockets landed at Balad airbase in Saladin province without causing any casualties or material damage," said an official statement.
Balad airbase, located some 64 kilometers (40 miles) north of Baghdad, includes a squadron of Iraqi Air Force F-16s, as well as US troops and government contractors.
Trump cagey on Middle East troops amid reported deployment
No group has yet claimed responsibility for the attacks.
The attacks come at a time of escalated tensions between the US and Iran amid fears Iraq could turn into a battleground between the two countries.
Almost 5,000 U.S. troops were deployed in several military bases throughout Iraq as part of the international coalition to fight the terrorist group Daesh/ISIS.
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