A motorist needed hospital treatment after being attacked in an apparent case of road rage.
Police are appealing for witnesses to the attack at the temporary traffic lights at the Calvert new roundabout roadworks, westbound on the A41 Bicester Road.
The victim, a 52-year-old man from Aylesbury, driving a black Vauxhall Corsa, stopped his vehicle at the traffic lights.
A flatbed lorry stopped in front of him, also by the traffic lights. The driver of that vehicle then got out and approached the victim.
An altercation took place during which the victim had his hand trapped in a car door, causing him an injury on his hand which required treatment at Stoke Mandeville Hospital.
It happened between 6.45am and 7.30am on July 11, police said today (Saturday).
A 33-year-old man from Aylesbury has been interviewed by police in connection with this incident.
If you have any information about this incident then please contact Det Con Nicholas Hills 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 www.crimestoppers-uk.org. No personal details are taken, information is not traced or recorded and you will not go to court.