Shocking video has emerged of a four-wheel-drive rolling off a barge and into the waters between Fraser Island and the mainland on Saturday morning.

The video, posted on the Moreton Crime Watch Facebook page, shows the vehicle slowly rolling off the Manta Ray barge ramp, which was down at the time of the incident, before slipping into the water.

A 4WD rolled off a barge near Fraser Island and into the Great Sandy Strait. Credit:Facebook / Moreton Crime Watch

Amid the chatter heard on the video from the tourists aboard the vessel, a woman can be heard exclaiming: "All their stuff's in there as well".

It was believed no one was in the 4WD at the time.