A 21-year-old man has been arrested on suspicion of murder following the death of a father of two in a suspected road rage incident in Nottingham.

Police said that Stephen Walsh, 37, was driving his Lexus car when he was involved in a collision on Newstead Avenue in Mapperley, north-east Nottingham, between 10pm and 10.30pm on Sunday.

He did not stop and instead drove home to nearby Blenheim Avenue. Officers believe he was followed by the driver of the other vehicle in the collision and was assaulted, sustaining head injuries.

Police said the man then left, saying he would return the next day to exchange insurance details, but Walsh was found dead at around 5.55am the next morning. A postmortem examination was carried out on Monday and an initial report found that Walsh died of head injuries.

Speaking before the arrest, DCI Hayley Williams said it appeared the assault was a spontaneous incident following the road traffic collision and there was no indication of any wider threat to the public.

A silver Vauxhall Astra was seized for forensic examination as part of the investigation. Police on Wednesday said they would still like to hear from anyone who witnessed the collision, or saw anything suspicious around the victim’s home at the time of the assault.