Forensic examinations are being carried out as part of the investigation.The women had attended a Jason Derulo concert as part of the annual music festival Live At The Marquee in Cork.
It has been reported that the women went to a nightclub after the gig had finished and met a group of people who had also attended the festival.
The group then returned to the Live At The Marquee on the Cork Docklands where the alleged assault was said to have taken place.
Gardai were contacted by the women in the early hours of this morning.
The men who were named in the alleged assault have been brought to a garda station in the area for questioning.
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