A bouncer suffered head injures outside of a bar in Hartlepool.
The altercation was reported to have taken place at Reflections Bar in Church Street at around 3am on Saturday.
Several people were asked to leave and as they did so, a further altercation took place outside during which the door supervisor sustained a head injury which required hospital treatment.
Two men, aged 46 and 50, and a 20 year old woman were arrested at the scene, on suspicion of grievous bodily harm with intent. They have all been bailed pending further inquiries.
Anyone with information is asked to contact DC David Walker at Hartlepool Police Office via the non-emergency number 101.
Information can also be passed anonymously via the independent charity Crimestoppers on 0800 555 111 or through their website at www.crimestoppers-uk.org.uk