Thames Valley Police is appealing for witnesses to an assault in Oxford.
The victims, two women and a man all in their forties, were attacked by a group of people at around 1.10pm on Wednesday 31 January at Rose Hill Cemetery on Church Cowley Road.
The victims all sustained injuries to their head and bodies. They attended hospital, and have since been discharged.
A 23-year-old woman, a 22-year-old man and a 53-year-old man, all from Swindon, were arrested on suspicion of causing grievous bodily harm with intent, assault causing actual bodily harm and affray.
A 26-year-old man from Swindon was arrested on suspicion of inflicting grievous bodily harm without intent, assault causing actual bodily harm and affray. They have all been released on bail.
Investigating officer PC Chloe Epton, based at Oxford police station, said: “I am appealing for witnesses to this assault to please come forward.
“Also, if you were driving in the area around the time of the collision and have a dash-cam, or if you live nearby and have a CCTV camera or a video doorbell, please check any recordings in case it has captured something that could assist us and get in touch if you have.
“You can contact us either via our website or by calling 101, quoting reference number 43240048258.
“Alternatively, you can contact the independent charity Crimestoppers anonymously on 0800 555 111.”
Notes to Editors: Updated to correct the address of the incident.