A man in his 70s is in a critical condition at the Mater Hospital in Dublin after a serious assault early this morning.
It happened at Courtney Place in Ballybough at around 2 am.
The victim suffered serious head and spinal injuries in the attack.
Gardaí at Mountjoy are appealing for witnesses. They can be contacted on 01-666 8600 or the Garda Confidential Line is 1800 666 111.