Boaters jump off boat moments before it explodes

A couple on board a burning speedboat were saved after good Samaritans warned them to jump off the vessel - seconds before it exploded.

Nathan Greenwood and his wife Rino were out on West Grand Traverse Bay, near Traverse City in Michigan, USA, when they spotted a speed boat engulfed in black smoke.

Video shows the Greenwoods approaching the boat as flames, which appeared to have started in the engine compartment, become visible.

They warn the two passengers on board that it was too late to try and tackle the blaze and they needed to get away from the boat.

Nathan shouted: “It’s too late. Get off the boat. It’s gonna blow.”

The passengers jumped overboard seconds before the boat 'blew up' ejecting smoke and debris into the air.

The Greenwoods managed to pull the stranded boaters safely out of the water.

An emergency boat, equipped with a hose, arrived at the scene to extinguish the blaze.

According to local reports, the boat ultimately sank.

The incident happened on July 21.