Armed gardai were called to a violent knife brawl that put two men in hospital yesterday.
Dozens of young men were involved in the street violence at around 1pm in the Cherry Orchard area of Ballyfermot, west Dublin, which sparked a massive garda response.
One casualty, a male in his mid-20s, suffered a facial injury when he was slashed.
A second man of around the same age also received a knife wound to the face.
Officers attached to the Armed Support Unit (ASU) raced to the scene in Clifden Drive after gardai received reports of a number of people armed with knives.
Several people were assaulted and property and vehicles were damaged.
The incident is believed to have involved two rival groups in the area, and those injured had to be taken to separate hospitals over fears of further violence.
"One man with a serious slash wound was taken to St James's Hospital, while another male with less serious injuries was taken to Tallaght Hospital," a source said.
"They had to be separated to prevent further incidents.
"The area where this occurred is covered by several CCTV cameras due to ongoing issues in the area, so establishing exactly who was involved won't be difficult."
Gardai at Ballyfermot are investigating the incident, but no arrests have yet been made.
A garda spokesman said off- icers were called at around 1pm after reports of a number of youths involved in a disturb- ance.
"A number of local garda units and the ASU are at the scene. Enquiries are ongoing," the garda spokesman said.
Local Sinn Fein councillor Daithi Doolan has appealed for calm.
"I have contacted gardai. I would appeal for calm and anyone involved to stop and think about the hurt and damage you are doing," he said.
A video of the aftermath of the incident, circulated on social media, shows a large number of garda vehicles, including armed 4x4s and unmarked cars in the area.
Another image showed a man, believed to have been injured during the violence, with a gap- ing slash wound on the left side of his face, stretching from his ear to his mouth.