Both men were being treated at the Great Oaks unit in Scunthorpe
A patient at a Scunthorpe mental health unit has been charged with the murder of another man being treated there.
Jamie Charles Reed, 26, of Scunthorpe, appeared at Grimsby Magistrates' Court in connection with the death of 60-year-old Robert MacNeil.
Humberside Police said Mr MacNeil, died at Great Oaks Hospital on Monday, but would not reveal his injuries.
Mr Reed was remanded in custody and will appear before Hull Crown Court on Friday.
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A spokesman for the trust said: "We can confirm that we have had an incident at Great Oaks in Scunthorpe and a patient has died. Our heartfelt sympathies are with the man's family and friends.
"The police were notified immediately of the incident in the early hours of Monday morning and we are fully co-operating with their inquiries.
"We cannot comment any further at this time due to the police investigation."
