A man has been hospitalised with serious head injuries following an attack outside a Cleethorpes nightclub.
The 31-year-old man was allegedly attacked close to the Barcelona Club on Station Approach at around 3am on Sunday, October 30.
An ambulance was called by a member of the public who is believed to have witnessed the incident.
The man was taken to Hull Royal Infirmary where he is in a serious condition.
Officers are keen to speak to the person who called the ambulance following the alleged assault or any other witnesses.
Anyone with information should call 101, quoting log 225 of October 30.
Alternatively, contact the independent charity Crimestoppers anonymously on 0800 555 111.