Gardai are investigating three separate stabbings in the city overnight.
One man is dead and two others are in a serious condition.
A post mortem is due on the body of 21 year old man killed in the Liberties shortly before a quarter to three this morning.
He was attacked at the Oliver Bond flat complex near Thomas Street. No arrests have been made and Gardai are appealing for information.
Another man is in a serious condition after being attacked on Temple View Avenue in Clare Hall.
The alarm was raised when officers were called to deal with a public order incident at 1.10am.
In Blanchardstown, a man is fighting for his life after being stabbed last night a bonfire in Drumheath.
It happened at around 7.30pm and there's also an appeal for witnesses to get in touch.
They can do so at any garda station, or on the Garda Confidential Line on 1800 666 111.
