Iran shoots down an American MQ9 UAV over the Strait of Hormuz Tehran, Irana -. The Public Relations Office of the Islamic Revolutionary Guard Corps (IRGC) announced in a statement the destruction of an advanced MQ9 unmanned aerial vehicle. The IRGC statement added a few hours ago, the 55th MQ-9 advanced UAV was intercepted and destroyed in the sky east of the Strait of Hormuz by an advanced and modern air defense system belonging to the IRGC Air Force, which operates under the control of the country's integrated air defense network.