POLICE are trying to trace a man who was attacked on Westgate on Mad Friday.
He was left with a cut to his left eye and swelling to his face after the incident in X-Change Bar between 9.45pm and 9.55pm.
Officers arrested a 21-year-old man on suspicion of assault outside the bar.
When they returned to the speak to the alleged victim he had disappeared.
He had grey hair, was in his 40s and around 5ft 6ins tall.
He was wearing a blue jumper and a checked shirt.
The man arrested was released on bail pending further enquiries.
Anyone with information, or anyone who knows the victim should contact PC Matt Lewis on 101.