1976 Tehran UFO Incident

At about 0030 hours, the Imperial Iranian Air Force command post at Tehran received four telephone reports from citizens in the Shemiran (north of Tehran). Some of the callers reported seeing a bird-like object in the sky, while others reported a helicopter with a bright light. When the command post found that there were no helicopters airborne at that time, they called General Yousefi, assistant deputy commander of operations. General Yousefi at first said the object was only a star, but after talking to the tower at Mehrabad Airport, he looked for himself and saw a very bright object larger than a star. At that point he decided to scramble one F-4 Phantom jet from Shahrokhi Air Force Base in Hamadan

At least one of the pilots tried to fire a missile at the UFO but the UFO was somehow able to jam not only his weapons control system but his navigational and communications systems as well. It also was able to neutralize the navigational and communications systems of the second jet and an airliner that was passing through the area.