Gardai have arrested a woman in her 40s after the discovery of a man's body in Foxrock late last night.
Gardai were called to a house in Tudor Lawns at around 11.30pm. They found the body of a man in his 20s.
Due to the nature of his injuries, Gardai are treating his death as suspicious.
Gardai are asking anyone who saw anything unusual in the area last night to contact them at Cabinteely Garda Station, the Garda Confidential Line of any Garda Station.