A 19 year old man is being held by Gardaí after a man was stabbed to death in Dublin.
It happened in the Castle Park area of Tallaght last night.
Emergency services were called at around 9 pm, but the victim who was aged in his 40's was pronounced dead at the scene.
A post mortem will be carried out later today.
The 19 year old is being detained at Tallaght Garda Station.
