A man in his 40s remains in a serious condition following an assault in Dublin city centre last week.
The incident happened on Sean McDermott Street in Dublin 1 at around 10pm last Friday.
The man is being treated in Beaumont Hospital.
Gardaí said a Senior Investigating Officer has been appointed to lead the investigation and an incident room has been set up at Mountjoy Garda Station.
They are appealing for witnesses and are asking anyone who was in the Sean McDermott Street and Diamond Park areas between 9.30pm and 10.30pm on Friday 25 July, and who may have camera footage, including dash-cam, to contact gardaí.
Anyone with information is asked to contact Mountjoy Garda Station 01 666 8600, the Garda Confidential Line on 1800 666 111, or any garda station.
