At around 2.30am on Saturday (1/10) an altercation between two groups of men took place on Maxwell Road, near the town centre. During this a man was hit over the head with an object which is believed to be similar to a metal crowbar.
One group of men then got into a silver Audi car and drove off.
The victim sustained a lump to his head but did not require hospital treatment.
A 20-year-old man and a 25-year-old man, both from Stoke Mandeville and a 23-year-old man from Aylesbury have been arrested on suspicion of assault, affray and possession of an offensive weapon. They have been released on bail.
Despite the arrests, Police are still looking for witnesses.
Investigating officer PC Charlotte Wythe-Pearce, based at Amersham police station, said: “I am appealing to anyone who witnessed this incident in the early hours of Saturday morning, or the circumstances leading up to the altercation to get in touch. What you saw or heard could prove vital to this investigation.
“You can get in touch using our online form or by calling 101 quoting reference number 43220440018. Alternatively, you can contact the independent charity Crimestoppers anonymously via their website or on 0800 555 111.”