Iran will not return an unmanned American stealth plane that it says it has, one of Iran’s top generals said, according to the semi-official Fars news agency on Sunday.

“No nation welcomes other countries’ spy drones in its territory, and no one sends back the spying equipment and its information back to the country of origin,” said Gen. Hossein Salami, deputy commander of the Armed Forces.

“It makes no difference where this drone originated and which group or country sent it to invade our air space,” Salami said. “This was an act of invasion and belligerence.”

American officials have not confirmed that the drone in a video released Thursday is a U.S. aircraft, but Pentagon spokesman George Little has said that an American drone is missing and had not been recovered as of Thursday.

But two U.S. officials confirmed to CNN on Tuesday that the missing drone was part of a CIA reconnaissance mission that involved both the intelligence community and military personnel stationed in Afghanistan.