Two small South Korean Air Force training planes collided in mid-air. On board were two flight instructors and two pilots in training who did not survive the accident, Yonhap news agency reported. After the accident, one pilot was missing for some time, but he also died.
The South Korean KT-1 aircraft crashed into a rice field near Sacheon, a city in the south of the country.
The cause of the accident is unknown.
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