The chopper crashed at the landing strip of a military unit in Pohang, South Gyeongsang province, at about 4.45 p.m., Xinhua news agency reported.
Among the six soldiers aboard the ill-fated MUH1 chopper, five were killed and one was wounded.
The helicopter reportedly fell down from about 10 metres high in the air while making a test-flight after maintenance. It was burned to ashes.
While extinguishing the fire, one firefighter was also injured. The Marine Corps command was quoted as saying it would form a committee to investigate the exact cause of the incident.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
