An official murder investigation has been launched following a stabbing in Palmerstown.
A man has died after being stabbed in a violent attack overnight.
He was one of two men in their 20s taken to hospital after a a group of people began fighting outside a guesthouse on Kennelsfort Road at a quarter to 4 this morning.
The victims were rushed to Blanchardstown hospital where one of them passed away this morning.
A man in his 30s was arrested at the scene and is being questioned at Ballyfermot Garda station.
