BAGHDAD (AP) — At least three rockets hit near Baghdad international airport late Thursday, the Iraqi military said.

A total of eight missiles were fired and three landed near the airport complex, the statement said. It did not detail whether the attack caused casualties.

The rockets struck areas known to contain Iraqi security forces. One hit close to a central prison, the second near an academy of the elite Counter-Terrorism Service, and a third near the headquarters of the Rapid Response regiment.

No one claimed responsibility for the attacks. U.S. officials have previously blamed Iran-backed militia groups.

It is the latest in a string of rocket attacks that have primarily targeted American installations in Iraq in recent weeks. On Sunday, multiple rockets hit an Iraqi airbase just north of Baghdad, wounding two Iraqi security personnel.

Last month, a base in western Iraq housing U.S.-led coalition troops and contractors was hit by 10 rockets. One contractor was killed.

Calls from mainly Shiite leaders have grown to oust U.S. troops from Iraq after a U.S.-directed drone strike killed Iranian Gen. Qassem Soleimani and an Iraqi militia leader in Baghdad in January 2020.

Strategic talks between the U.S. and Iraq have focused on the future of U.S. troop presence in the country.