Police are appealing for witnesses to a potential road rage incident in Truro.
The incident was reported to have taken place at 7.30pm on Monday 12 August on the A390 at Threemilestone.
The victim, a man in his 60s, was assaulted to the back of the head with a bottle, causing visible injury. He was treated at hospital for his injury.
The suspect was believed to have been a passenger in a white VW Transporter Van. The suspect is described as a white male, around 5ft 11ins tall and of skinny build with dark hair.
Anyone who witnessed the incident and anyone with information is asked to call 101 and quote CR/073065/19.