GARDAÍ have launched an investigation into alcohol-fuelled disorder in Dublin's Temple Bar during last year's Arthur's Day and will prepare a file for the Director of Public Prosecutions.

According to witnesses, gardaí were pelted with missiles by a crowd of people, although no arrests were made and no formal investigation was established.

Scenes from the incident – which included young men dancing naked in the streets – were posted on YouTube but later removed.

Dublin City Council has already admitted its association with the alcohol marketing campaign was an "oversight" and said that its link on promotional materials "will not happen again".

However, with Diageo, the makers of Guinness, due to address councillors at an upcoming committee meeting dealing with arts, culture, sports and tourism in the city, the issue remains at the heart of a protracted debate.

Independent councillor Mannix Flynn, a vocal opponent of the council's involvement in Arthur's Day, demanded a full report into the circumstances surrounding the anti-social behaviour.

"I am asking them to investigate the complete breakdown in public order and people throwing missiles at a squad car, which left the area and made no attempt to break up this mob," he said.

"The video shows very clearly the guards being pelted with beer bottles and then driving away.

"It also shows two men in the Temple Bar area jumping around naked, one of them with the whole left side of his shoulder ripped off. Each and every one of them had a pint of Guinness in their hands and it was obvious that the whole thing had become very dangerous."

Diageo has said the now annual affair, held on 23 September, aims to celebrate Guinness and its founder. It had no comment on the investigation.

Gardaí had deployed additional members of the force to the Temple Bar area for the event as standard policing practice and also had plain-clothes officers present.

However, the nature of the violence aimed at gardaí and the apparent lack of a garda reaction led Flynn to believe the matter was not being taken seriously enough.

He claimed that no arrests were made and that the breakdown in order was reminiscent of the worst aspects of St Patrick's Day celebrations, in which drunken youths had become the focus of objections.

A comprehensive investigation is now underway under the supervision of an inspector from Pearse Street garda station. A file will be sent to the DPP.