A man sustained a broken jaw after he was attacked outside a popular Preston nightclub.
The assault happened shortly after midnight on Friday 3 April when the victim - a 50-year-old man - was punched outside Popworld on Church Street.
He was approached by a man who hit him in the face, causing him to fall to the floor unconscious.
The victim sustained a broken jaw as a result of the attack.
Now Lancashire police have released a CCTV image of a man they would like to speak to.
PC 3448 Ashley Gibson of Preston Police said: “I would urge anyone who recognises the man pictured in the CCTV image or has any information that could help with our investigation to come forward and contact us.”
Anyone with information can contact Preston Police on: 01772209617 or they can call: 101 quoting crime reference SA1503536.
Crimestoppers can also be contacted anonymously on: 0800555111 or online at Crimestoppers-uk.org.
No personal details are taken, information is not traced or recorded and you will not go to court.