POLICE are hunting for a road rage attacker who threatened a 21-year-old driver at a Trowbridge roundabout.

The victim, from Bratton, was driving his blue Vauxhall Cavalier on the Longfield roundabout at 11am on Monday when he was forced to pull over by a second driver.

The angry driver got out of his car and began yelling abuse at the 21-year-old before pounding his fists on the car window and smashing the glass.

Lunging through the broken window the road-rage attacker tried to punch the victim in the face before getting back in his own car and driving off.

Police are appealing for witnesses to come forward.