Thames Valley Police is appealing for witnesses following an incident of grievous bodily harm in Reading.
There was an altercation between the victim, a 50-year-old man, and a woman in Station Approach near Revolution bar at about 3.20am on Sunday (6/11).
During the incident the woman slapped the victim, following which another man punched the victim.
The victim sustained a bleed on the brain and a fractured skull and is currently being treated in hospital.
Investigating officer, Det Sgt Richard Vint of Force CID, said: “We are looking to identify the offenders but we need the help of the public. If you witnessed the assault, know who the offenders are or have any other information regarding the incident please call us on 101.
“This is an extremely serious offence during which the victim suffered a bleed on the brain and a fractured skull. If you have any information about the offence I would urge you to think of the victim and come forward to police.
“If you do not want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111. No personal details are taken, information is not traced or recorded and you will not go to court.”