
Members of the public detained a man following a serious assault in Plymouth which left another man with life changing injuries, police have said.
Officers were called to North Hill at around 7.20pm on Tuesday 15 September following reports that a man had been assaulted by another man believed to be carrying a knife.
According to police, the assault happened in the street at the junction of Amity Place and Deptford Place.

The injured man was later found on North Hill. Members of the public detained a man nearby before police officers arrived at the scene.
The victim, a Plymouth man in his 20s, sustained serious life changing injuries and was taken to Derriford Hospital. Police said he remains in a stable condition.
A Plymouth man in his 20s was arrested on suspicion of attempted murder and possession of a bladed article in a public place. He remains in police custody.
Detectives have launched an investigation and are carrying out significant enquiries into the circumstances surrounding the incident.
Officers are reviewing CCTV and mobile phone footage as part of the investigation.
A police cordon was put in place and North Hill was closed while forensic examinations and other investigative work were carried out. All cordons have now been lifted.

Detective Inspector Marcus Hodges said: “This is a fast moving investigation and our enquiries are continuing to establish the full circumstances surrounding this incident. One man has been arrested in connection with the investigation and remains in custody.
“We are appealing to any witnesses who have not yet spoken to police to come forward. We are also keen to hear from anyone who may have mobile phone, dashcam or CCTV footage which may assist the investigation.
“We understand this incident will have caused concern within the local community and there will be an increased police presence in the area today. Local neighbourhood officers are carrying out reassurance patrols around North Hill and I would urge anyone with concerns to speak to them.”

Anyone with information which may assist the investigation is asked to contact police through the force website or by calling 101, quoting reference number 50260247877.
Information can also be passed anonymously to Crimestoppers by calling 0800 555 111.
Photographs © Wayne Perry / Plymouth Post