A Stoke-on-Trent man arrested on suspicion of murder has been released on bail, pending further enquiries.
The 49 year-old was arrested yesterday (3 June), following the death of 62 year-old Mark McNair.
He was found with serious injuries following an incident at Imperial Court in Hanley on Wednesday 8 May.
Mr McNair passed away at the Royal Stoke University Hospital on Sunday (2 June).
A post mortem examination proved inconclusive, and further tests will be carried out to establish the cause of his death.