Investigations into a gangland murder at a Dublin hotel have led to the arrest of a father and son.

The Regency Hotel in Drumcondra was the site of a bloody attack in February as part of the Kinahan-Hutch feud.

33-year-old David Byrne was shot dead during the raid and his death has sparked several revenge attacks since.

Three people have been questioned as part of the murder investigation.

The latest pair arrested yesterday are a 38-year-old man and his 59-year-old father.

The son was reportedly stopped by officers at Dublin Airport after being told his life was in danger.