Two military training planes collided in mid-air in South Korea. Four pilots were killed. The South Korean military reports this.
According to the Yonhap news agency, the collision happened minutes after the KT-1 aircraft took off. The planes crashed into a rice field in Sacheon, South Korea.
It is still unclear how the incident could have happened.
However, the South Korean Air Force has launched an investigation. In January, another South Korean pilot was killed in an F-5 fighter jet crash.