A man was left in hospital with a serious head injury after he was attacked in Borehamwood.

Police say they were called to reports of an incident in Rowley Lane at 1.45am on Sunday October 16.

A man in his 30s was found injured by officers and taken to hospital. Detectives say he suffered a serious head injury but that his condition was not life-threatening.

Those involved in the incident do not know each other, police said.

A 25-year-old man was arrested on suspicion of grievous bodily harm (GBH). He has since been released on bail.

Police have now launched an appeal for witnesses and information.

Detective Sergeant Katie Stevens said: “This was a serious assault, which left the victim in hospital with a serious head injury. The early stages of our investigation have ascertained that the victim and the suspect are not known to each other.

“We are in the process of conducting thorough enquiries in order to piece together the circumstances of what happened, and are appealing to the public for their help. If you were in the area at the time and believe you may have witnessed the incident, or have any information you think may be able to help us with our investigation, please get in contact.

“I would also like to ask that anyone who was driving in the Rowley Lane area around the time specified that has a dash cam fitted to their vehicle to please review their footage, as they may have captured vital evidence.”

Anyone with information is asked to email DS Stevens at katie.stevens@herts.police.uk or call 101, quoting crime reference 41/83693/22.

Alternatively, contact Crimestoppers anonymously on 0800 555 111 or visit  crimestoppers-uk.org.