Gardai are appealing for witnesses after a teenage girl reported an alleged sexual assault by two males at the Electric Picnic music festival.
The victim has said she was assaulted in a tent at the event on Saturday. No arrests have yet been made but gardai said they are continuing their inquiries.
The alleged victim was taken to a Sexual Assault Treatment Unit where she was treated following the incident.
Gardai have said they are continuing to support her.
It is understood the complainant has alleged two suspects were involved.
The incident was one of almost 500 reported to gardai at the festival in Stradbally, Co Laois, over the weekend.
Gardai received reports of 497 offences, including drugs offences, assault, public order offences and driving while under the influence.
A number of people were also treated after suffering adverse reactions to alcohol and drugs at the festival, with one patient described as being in a critical condition.
One man was arrested over possession of an offensive weapon while leaving a car park, and it later emerged that he had two outstanding bench warrants against him.
"While there were a large number of medical issues with patrons being treated for various aliments, including the adverse effects of alcohol and drugs, there were two transfers to Portlaoise Hospital of patients who had been resuscitated and deemed critical," a post on the Facebook page for the Laois/Offaly garda division said.
"Both these patients have since stabilised and gardai retain contact with both families, having provided Family Liaison services.
"Gardai are also continuing to investigate one sexual crime which was reported during the festival and are continuing to provide support to the victim at this time.
"Gardai would like to thank all those who attended at the event for their co-operation and compliance with the traffic plan."