A man has been arrested after a woman was sexually assaulted in St Aldates, Oxford.

Police said the 18-year-old victim was at McCoys kebab van at about 4am on Sunday when a man touched her inappropriately.

The offender was described as Asian, aged in his early 20s, of medium build and between 5ft 8ins and 5ft 10ins tall.

He was wearing a black leather-look peaked cap, a leather jacket, a light-coloured t-shirt and blue jeans.

Police arrested a 25-year-old man on suspicion of sexual assault in connection with the incident.

He has been released on police bail until December 29.