A man is in a critical condition in hospital after suffering a serious head injury during an attack on West Street in Leek.
The incident happened outside the CO-OP store at around 8.40pm yesterday evening (July 19).
The victim was taken to Royal Stoke University Hospital by ambulance.
Staffordshire Police say a man has been arrested in connection with the incident, and remains in custody.
Detectives were working with forensics teams to establish the circumstances of the incident and enquires are on-going.
Officers are appealing for anyone with information about the incident can call 101 quoting incident number 750 of 19 July.
Alternatively, for guaranteed anonymity, call Crimestoppers on 0800 555 111.