A MAN has lost sight in one eye and his friend has suffered a broken jaw following an assault in Oxford.

A 31-year-old man and a 29-year-old man were in The Cellar, off Cornmarket Street, when they were punched by man in a 'violent and unprovoked attack'.

The unknown attacker punched both victims, Thames Valley Police said.

The 31-year-old man suffered a broken jaw which required surgery and his friend, the 29-year-old man, has lost sight in one of his eyes due to injuries sustained during the assault.

The friends were in the club at about 1.30am on Thursday, 21 September, but Thames Valley Police only released an appeal for witnesses this evening.

Officers are hoping members of the public can help find the attacker, who is described as a man in his mid 20s to early 30s, with dark skin and black hair.

He is believed to be of average build and about 6ft. He was wearing a baseball cap, a red t-shirt and grey or black tracksuit bottoms at the time of the assault.

Detective Constable Rebecca Smith of Force CID based at Oxford, said: "This was a violent and unprovoked attack on two friends who were enjoying a night out in Oxford.

"I am confident that someone will know who this offender is, if you do please do the right thing and contact the police.

"The easiest way to contact the force is by calling 101 or visiting your nearest police station and quoting reference 43170285877."