A man suffered a broken nose after he was headbutted outside a Kettering club.
The incident happened outside Remi’s in Silver Street between 11.45pm on Saturday, March 4, and 1am on Sunday, March 5.
The 28-year-old victim was left with a broken nose.
The offender is described as black, in his late 20s and stocky with short black hair.
He was wearing a grey, long-sleeved jumper with a black and grey camouflage pattern on the sleeves, dark blue jeans and blue suede lace-up boots.
Officers have arrested a man in connection with the offence. He is currently on bail pending further inquiries.
Anyone with information should call Northamptonshire Police on 101 or Crimestoppers anonymously on 0800 555111.