There were no casualties or damage to infrastructure, a US Defense Department official said CAIRO: Three armed drones were shot down on Tuesday over Irbil airport in northern Iraq, where US forces and other international forces are stationed, in two separate attacks, Iraqi Kurdistan’s counter-terrorism service said in a statement. It was not immediately clear who was responsible for the attacks, the latest in a series on US troops in Iraq and Syria as tensions soar in the Middle East over the Israel-Hamas war. The defense system at a military base near the airport successfully defended against the drones, the statement said. There were no casualties or damage to infrastructure, a US Defense Department official said. Iraqi Prime Minister Mohammed Al-Sudani has pledged to pursue those responsible for recent attacks on three military bases in Iraq hosting international coalition advisers, including Ain Al-Asad in western Iraq, a military base near Baghdad’s international airport and Harir in Irbil.