TEHRAN — The naval forces of Iran’s Islamic Revolutionary Guards Corps have captured an American drone that Iran said entered its airspace over the Persian Gulf, state television reported Tuesday. The claim was quickly denied by the United States Navy and later by the Obama administration.

Iranian state news media said the aircraft was a ScanEagle built by Boeing, which, according to the company’s Web site, can be launched and operated from ships.

A spokesman for the United States Navy in Bahrain denied the Iranian claim, saying that no American drones were missing.

“The U.S. Navy has fully accounted for all unmanned air vehicles operating in the Middle East region,” a spokesman for the United States Naval Forces Central Command in Bahrain told Reuters. “Our operations in the gulf are confined to internationally recognized water and airspace. We have no record that we have lost any ScanEagles recently.”