A public appeal has been issued by gardaí for witnesses to an assault in Temple Bar in Dublin at 3.20am.

A 21-year-old man received serious head injuries after an altercation between two youths on Essex Street.

The man was taken to St James's Hospital initially but was transferred to Beaumont Hospital.

Anyone with information has been asked to contact gardaí in Pearse St on 01 6669000, the Garda Confidential Line 1800 666 111 or any Garda Station.