An elderly woman was killed in a vicious assault in her home in north Dublin.
The body of the pensioner was discovered at a house in Kincora Court, Clontarf, yesterday evening.
She suffered serious injuries during the attack and was pronounced dead at the house.
A man well-known to her and aged in his 60s was arrested at the scene.
He was taken to Clontarf Garda Station where he was being held last night under Section 4 of the Criminal Justice Act 1984.
Sources said no weapon was used in the assault, which was described as a tragic domestic incident.
Dublin Fire Brigade paramedics attended the scene, but the woman could not be saved.
Her body remained at the house last night as forensic investigators carried out an examination.