A man in his 20s, who was being questioned over a fatal stabbing in Dublin, has been released without charged.
A file will now be sent to the Director of Public Prosecutions.
20-year-old Colm Hughes died after he was stabbed during a row at Fortlawn Avenue in Blanchardstown on Monday night.
Gardaí investigating the killing have said that they are following a definite line of enquiry.
