A South Korean Air Force pilot died on Tuesday after the F-5E jet he was flying in crashed.
According to an official statement, an engine fire warning light turned on for the plane's left and right sides after the takeoff at a Suwon base at 1:44 p.m. The F-5E then shortly nosedived and crashed into a mountain in Hwaseong, some 40km south of Seoul two minutes later.
The pilot with the rank of captain tried to eject but failed.
The service said it will form a task force to investigate the exact cause of the incident.
South Korea has operated around 200 F-5s since the 1970s, most of which are out of service or soon to be so after reaching a full life cycle.