Police are appealing for witnesses to come forward following an altercation in Borehamwood.
The incident occurred at around 1.30pm on Friday 14 July, on Bullhead Road.
It is reported that a physical altercation took place between two men, who were occupants of a dark-coloured Audi and a blue Vauxhall Corsa.
Detective Sergeant Amy Brewer, who is investigating, said: “Our enquiries are continuing, and we are appealing for any witnesses to please get in touch.
“Were you in the area and saw what happened? Additionally, if you have a dash cam fitted and were driving in the area at this time, please check it as you may have recorded some crucial footage that could assist our investigation.”