해병대 마린온헬기 추락 영상 공개<br /><br /> South Korea's Marine Corps unveiled footage of Tuesday's helicopter crash in Pohang that killed five and left one seriously injured.<br /> The 10-second clip shows the vehicle crashing shortly after take-off... as its rotor blades fall off.<br />The corps launched an official investigation committee... to figure out the exact cause of the accident.<br />The MUH-1 chopper was exclusively developed for the Marines by Korea Aerospace Industries, which delivered four of them early this year.<br />The original plan was to take 28 helicopters by 2023, but that could change depending on the result of the investigation. <br />