A murder investigation is under way following the death of a 20-year-old man, who was attacked and stabbed in Galway city in the early hours of this morning.

A post-mortem examination established that Kieran Cunningham, a supermarket employee, from Slieve Finn, Claregalway, died from multiple stab wounds.

Gardaí have issued a picture of two people they say they want to talk to, as part of their overall investigation into the incident.

The man is in his mid-20s, 6ft tall with dark coloured hair, tightly cut.

He was wearing a blue-coloured t-shirt with the logo ‘SAO PAOLO 09’ and stonewashed denim jeans. The t-shirt has a white rim on the neck and sleeves.

He is accompanied by a woman who is about 5' 6" tall with dark hair tied back and wearing a purple coloured top and black ¾ length trousers. She was carrying a black shoulder bag.

Mr Cunningham was attacked in the Williamsgate Street area of the city at about 2am.

A number of streets in the city have been sealed off and gardaí have begun a search for the weapon used in the attack.

Superintendent Tom Curley, who is heading the investigation, said Mr Cunningham had earlier been in the nearby Karma nightclub.

There were about 150 people in the club and gardaí are now hoping to interview all of these to try to establish the sequence of events that led up to the fatal stabbing.

They are also appealing to anybody who was in the Shop Street, Eglinton Street, Eyre Square area of the city centre and who may have noticed anything suspicious to contact them at Mill Street Station on 091 538000.

The scene of the incident has remained sealed off for a technical examination.