The Joseon dynasty Gwanghaegun Annals (1609) describe a UFO-like sighting in Yangyang: a 'round, glowing object' rose from the ground, shining white, blue, and red, then split in two and vanished. The K-drama 'My Love from the Star' was inspired by this record.

In 1976, ten bright lights appeared in formation over Seoul. The military fired anti-aircraft guns, but the lights drifted away unscathed. Stray rounds killed one civilian and injured 31. Officials blamed a US cargo plane, but many questions remain unanswered.