Officers were called to a property in the Tallaght area of ​​the city at around 12.30pm on Sunday. Two children and a teenager were taken by ambulance to Children’s Health Ireland (CHI) in Crumlin, but all three were later pronounced dead. A teenage boy was also taken from the scene to Tallaght Hospital with serious injuries which are not believed to be life-threatening. Has this story affected you? If so, please email [email protected] Gardai described it as a “violent, provocative and traumatic incident” but have yet to give further details of what happened. The Garda Armed Support Unit used non-lethal devices to arrest a man in his 20s at the scene. He is currently being held at Tallaght Garda Station under Section 4 of the Criminal Justice Act 1984. The children’s mother, who was not injured at the scene, was also taken to the hospital and is currently hospitalized. Police at the scene of the incident in Rossfield Estate, south-west Dublin (Sky News) Gardai said all those involved are believed to be known to each other and officers are not looking for anyone else in connection with the incident. The scene at the Rossfield Estate remains sealed off and a forensic examination will be carried out by the Garda Technical Bureau on Sunday. The teenager is believed to be 18 years old and her two sisters – twins – were 8 years old. The Coroner’s Office and the State Coroner have been informed and post-mortem examinations are to be carried out. A family liaison officer has been appointed and will continue to support those involved, gardai added. Locals said they were woken in the night by wailing police sirens and a helicopter in the early hours of the morning. Two children and a teenager were taken by ambulance to Children’s Health Ireland (CHI) in Crumlin, but all three were later pronounced dead. (Sky News) “I was up all night hearing the sirens and the helicopter. God loves them all,” said one woman. Another local resident wrote on Facebook: “Terribly sad. I could hear helicopters and police sirens last night.” South Dublin County Council councilor Charlie O’Connor described the incident as a “truly sad event”. “Here in Rossfield you can get that sense … that people are really shocked,” he told Sky News. “We expected this incident to have an impact on the community not only here in Brookfield, but also in the wider Tallaght area.”