Report: Iran says it has captured US drone Jim Watson / AFP - Getty Images, file Insitu's ScanEagle, an autonomous aircraft system, launches during the Association for Unmanned Vehicle Systems International (AUVSI) demonstration day at Naval Air Station Pax River Webster Field Annex in St. Inigoes, Maryland, on August 10, 2009. Iran captured a United States drone that was flying in the country's airspace, its media reported Tuesday. The ScanEagle drone was gathering information over Gulf waters and had entered Iranian airspace when it was captured by the naval unit of the Revolutionary Guards force, the semi-official Fars news agency reported. Last month the U.S. said Iranian warplanes shot at a U.S. surveillance drone flying in international airspace. Iran said the aircraft had entered its airspace. The ScanEagle is manufactured by Boeing Co. According to the firm's website, the drone is four feet long and has a 10-foot wingspan. NBC's Jim Miklaszewski reports on the American stealth drone that crashed in Iran and whether it is giving the Iranians access to a wealth of U.S. technology. The Fars report, citing a senior naval officer, said Iran's forces had "full intelligence supremacy over the moves of the foreign forces in the Persian Gulf." In April, Gen. Amir Ali Hajizadeh, who is chief of the aerospace division of the powerful Revolutionary Guards, claimed that his government was copying an American spy drone captured by Iran's armed forces last year. Related content: Drone that crashed in Iran risks secret US technology Iran says it is building a copy of downed US spy drone Iranian jets attack US military drone, Pentagon officials say Hajizadeh was quoted as saying that Iranian experts were recovering information from the RQ-170 Sentinel captured in December last year in eastern Iran, al Arabiya News reported.