It's been shared across social media
Between 30 to 40 teenagers are gathered in the video in the Granary Court area of the Mount Oval housing estate.
The video shows a large group of fighting and several smaller fights, with a number of young girls shouting for it to stop.
Gardai say they have received several reports from locals, and have mounted 'proactive patrols' in the area.
Gardai from Douglas and Togher arrived at the scene shortly after the brawl, and are asking anyone with any information to contact Togher Garda Station on 021 494 7120.
