Police have named a man who died after a neighbour dispute in Stoke-on-Trent.
Uttoxeter Road has been sealed off over the weekend
Keith Brown, 52, from Uttoxeter Road, was pronounced dead in hospital after officers were called to reports of a disturbance in Normacot on Friday.
Staffordshire Police said the dispute appeared to involve land between two properties.
A 14-year-old girl and two men, aged 32 and 19, have been released on police bail. Three other men, aged 49, 24 and 26, are being questioned.
Police are treating the incident as a murder inquiry and revealed that a post-mortem examination showed Mr Brown suffered a single stab wound to the back.
A 19-year-old man, who suffered minor injuries, was later discharged from the University Hospital of North Staffordshire in Stoke-on-Trent.
The scene at Uttoxeter Road was expected to remain sealed off until at least Sunday evening, while the forensic science experts continue their investigations.
Anyone with information is asked to call the police incident room at Water Street, Newcastle-under-Lyme, or Crimestoppers.