A man was left with an injury to his face after being seriously assaulted near a bus stop in Dumbarton.
At around 6.45pm on Wednesday, the 40-year-old man was on Glasgow Road near its junction with Castlegreen Street when he became involved in a fight with a man in a red car, thought to be a teenager.
The teen then attacked the man before making off down Castlegreen Street in his vehicle.
The victim received treatment for a facial injury at the Royal Alexandra Hospital.
Police are hunting the suspect described as being 17 or 18-years-old, between 5ft 6in and 5ft 8in tall, with short black hair.
He was wearing a blue Rangers top, black shorts and was carrying a black rucksack at the time of the incident.
Detective constable Mark Gillies, from Clydebank CID, said: “I am appealing for anyone who may have witnessed this incident to please come forward.
“In particular I would like to speak to any motorists who were on Glasgow Road at the time, and may have dash-cam footage which could be of significance.
“Anyone with information is asked to contact Clydebank CID through 101, quoting incident number 3078 of Wednesday, June 2. Alternatively you can call Crimestoppers anonymously on 0800 555 111.”