South Korea's Marine Corps has unveiled footage of Tuesday's helicopter crash in Pohang that killed five marines and left one seriously injured.<br /> The ten-second clip shows the vehicle crashing shortly after take-off... as its rotor blades fall off.<br />The Marine 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 />
