Two men have were involved in a dangerous episode of road rage in Massachusetts.

A motorist named Mark Fitzgerald was behind the wheel of a white SUV that had a 65-year-old, Richard Kamrowski, draped across the hood.

Video footage taken from a nearby vehicle showed the driver appearing to accelerate down a highway.

The incident came to an end when a man with a gun forced Fitzgerald to stop.

Kamrowski later told reporters that he kept telling Fitzgerald to stop, but he kept driving. 

You can see what it looked like in the video below.