Police are appealing for information following an incident of violent disorder last month.
The incident involving nine men took place between 1.30am and 2am on Sunday, March 16, in Bryant Court, on Moreton Road, Buckingham.
Four men were treated for head injuries at Milton Keynes Hospital as a result.
Five men from Buckingham, aged from 26 to 38, were arrested in connection with the incident and released on police bail pending further enquiries until April 23.
Investigator Joanna Simmons said: “This was at the time when many people would have been leaving the town to go home.
“I am appealing for anyone who saw what happened to contact police.”
Anyone with information about the incident should contact Joanna Simmons via the Thames Valley Police enquiry centre on 101.
If you don’t want to speak directly to the police, you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at Crimestoppers-uk.org No personal details are taken, information is not traced or recorded and you will not go to court.