U.S. official : `` We now have no reason to believe '' the drone in the video is a fake . Another official questions the intact appearance of the drone after a crash . The third official says that it's not clear if this was an accident or intentional, but they are still investigating and will release more information as soon as possible. '' Gen. Amir Ali Hajizadeh , commander of the Islamic Revolutionary Guards Corps Aerospace Forces , according to the semi-official Fars News Agency . Iran 's Foreign Ministry delivers a reprimand of U.S. to Swiss envoy .
U.S. official : `` We now have no reason to believe '' the drone in the video is a fake . Another official questions the intact appearance of the drone after a crash . The third official says that it's not clear if this was an accident or intentional, but they are still investigating and will release more information as soon as possible. '' Iran 's Foreign Ministry delivers a reprimand of U.S. to Swiss envoy .