A man suffered stab wounds during a grievous bodily harm incident in Marlow on Sunday 11th November 2018.
At around 3.15pm, officers from Thames Valley Police were called to Paget Close in Marlow where they found a 19 year old man with stab wounds.
Police are still conducting enquiries to establish exactly what happened and a large police presence remained around the scene for several hours.
The 19 year old victim was been taken to the John Radcliffe Hospital with serious, but non-life threatening injuries.
Investigating officer, Detective Sergeant David Mitchell of Force CID in High Wycombe, said: ‘We are in the very early stages of this investigation.
I would like anyone who knows anything about this incident or who saw what happened to get in touch.
You can contact us on the non-emergency police number 101, quoting 43180344752 or make a report online.
If you wish to remain anonymous, you can make a report to Crimestoppers on 0800 555 111.‘
Police have arrested an 18 year old man, three 17 year old boys and a 14 year old boy, all from Marlow, on suspicion of affray and grievous bodily harm. They have been released on police bail until Sunday 9th December 2018.