A man has been arrested on suspicion of murder following the discovery of a man's body at a house in Castlebar, Co Mayo.
Gardaí and the emergency services were called to the thatched house on Pheasanthill just outside Castlebar at around 6.30pm.
The house had been set on fire and when the fire brigade extinguished the blaze the body of a man believed to have been in his 80s, was discovered in the house.
A short time later another man was arrested in the vicinity on suspicion of murder.
He is being detained at Castlebar Garda Station under Section 4 of the Criminal Justice Act and can be questioned for up to 24 hours.
The scene has been preserved pending the arrival of a state pathologist and the Garda Technical Bureau to conduct a forensic examination.
The victim's body remains at the scene.
Gardaí say they are following a definite line of inquiry and have appealed to anyone with any information to contact them at Castlebar Garda Station on 094 903 8200, the Garda Confidential Line on 1800 666 111, or any Garda station.
