According to three Iranian sources, quadcopter suicide drones deployed from within Iran on May 25 launched an attack on the country's Parchin military facility. The attack targeted a site used by the Iranian Ministry of Defense and Armed Forces Logistics (MODAFL) for drone development and resulted in the death of a MODAFL engineer. A MODAFL statement suggested that Iran saw the episode as an attack rather than an accident, as had been previously reported. An unnamed U.S. official confirmed that drones had attacked Parchin.