Gardai were called as hundreds of students turned up to a Project-X style house party in Limerick.
Images show the huge crowd at the home in the College Court area on Monday night, with a DJ playing in the garden and scores of people dancing on the roof.
In one video, flares can be seen lit as the garden area is packed-out, while another shows up to 50 people chanting inside too - CorkBeo reports.
