Gardaí have arrested two men in connection with the murder of David Byrne at the Regency Hotel last February.
The two men are aged in their fifties and thirties.
They are being held at Swords and Clontarf Garda Stations under Section 50 of The Criminal Justice Act.
The arrests bring to three, the number of people who have been detained as part of the murder investigation.
The Regency Hotel shooting last February led to a series of murders linked to the Kinahan-Hutch gangland feud.
