A murder investigation is under way after a man in his 60s was stabbed to death at his home in south Co Dublin last night.
A man in his 30s was arrested at the scene and is being questioned at Tallaght Garda Station.
Gardaí have said they are treating the case as a domestic incident and are not looking for anyone else at present.
They are appealing for anyone with information to contact them.
The victim's body has been removed from his home for a post-mortem later today.
The house where the man was killed is in Carriglea View, a quiet settled residential estate in Firhouse.
It remains sealed off as a crime scene as specialists carry out a forensic examination.
Gardaí were called to the house in the early hours of this morning where a separated father-of-two in his 60s was living along with a number of other unrelated people.
Another man in his 30s was visiting last night, when at around 11:50pm, the man in his 60s was attacked and stabbed to death.
The victim who worked as a carpenter and ran his own business, lived in the house, which he owned for many years.
He also rented out rooms to lodgers and was well-known to neighbours.
The man in his 30s was arrested at the scene on suspicion of murder. He was taken to Tallaght Garda Station.
The gardaí have spoken to the other people who were in the house at the time and they are helping them with their investigation.
The victim and the man in custody are related and he can be questioned for up to 24 hours.
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