An 89-year-old widower, who was killed following a violent attack by a fellow patient at a Cork hospital, has been named locally as Matthew Healy, a farmer from Berrings in Co Cork.
The attack on Mr Healy occurred in a general ward at Mercy University Hospital (MUH) shortly after 5am on Sunday.
It is understood the pensioner was assaulted with a walking frame. Staff intervened in a bid to bring the assault to a halt.
The Armed Support Unit also attended the scene and assisted in the arrest of a male patient.
Mr Healy was pronounced dead at the scene. The area where the assault took place was cordoned off to allow for a full forensic and technical examination by gardaí.
A post-mortem examination will be carried out on the deceased by Assistant State Pathologist, Dr Margaret Bolster.
The attack was witnessed by other patients who have now been moved to another ward in the hospital. Staff and patients are said to be shocked by what unfolded.
The attack took place on a six bed general ward.
A 32-year-old man who was arrested at the scene is being held for questioning at the Bridewell Garda station in Cork city. He is being detained under Section 4 of the Criminal Justice Act.
The men were not known to each other prior to hospitalisation. The arrested man is from Churchfield, on the north side of Cork city.
An incident room has been established at the Bridewell Garda station and a family liaison officer has been appointed to assist the bereaved family.
The pensioner is survived by his two adult sons and a daughter. He also had eight grandchildren.
Mr Healy and his wife Delia were predeceased by another daughter.
The hospital is providing counselling services to patients and staff affected by the incident.
Local Fianna Fáil councillor Michael Looney said the people of Berrings are deeply saddened and shocked by the passing of a "pure gentleman".
"He was a very quiet man. The last place you would think something like this would happen is in a hospital. When you go in to hospital you think you are safe in your bed.
"The people of Berrings are devastated. The family are here for generations, they are hugely respected.
"They [the Healy family] are lovely people and [Mr Healy] was a thorough gentleman. A pure gentleman. His wife is only dead a few weeks."
Meanwhile, a long-time advocate for the elderly in Cork, Paddy O'Brien, has also offered his condolences to the family of the deceased following the shocking incident at MUH.
"I just heard what happened on the news. I sympathise with the family of the man on this tragedy.
"For a man to go in to hospital only to lose his life. I don't know what to say.
"The Mercy is a fine hospital. I spent a period there myself in 2020. The care I got there was excellent. This is an awful, desperate tragedy. That poor man went in hospital with some illness and nobody could expect a tragedy like this to happen.
"My thoughts are also with the family of the other man involved. He also has a family. My thoughts are also with the staff at the hospital as they are in shock."
MUH also issued a statement in which they confirmed gardaí are investigating the incident.
"The hospital is providing counselling services to patients and staff affected by the incident."
In a further statement, the hospital said it is "saddened and shocked at the tragic and unexpected death of an elderly patient in an incident in the hospital".
The hospital also expressed "deepest condolences" to the family, relatives and friends of the deceased.
Gardaí said they are not looking for anyone else in relation to the death.