Three people, including an infant boy, have died in a single vehicle crash near Cashel, Co Tipperary.
The collision happened shortly before 9pm yesterday when a car hit a wall in Windmill Knockbulloge.
A man and woman who were rear seat passengers were pronounced dead at the scene.
Their bodies remained at the scene overnight.
The boy's body was removed to Tipperary University Hospital in Clonmel.
A man driving the car and a woman, who was a front seat passenger, were taken to TUH, where their condition is described as serious.
The road is closed for a technical examination.
An incident room has been established at Cahir Garda Station and gardaí are appealing for any witnesses to contact them.
Road users who may have camera footage and were travelling in the Windmill Knockbulloge area near Cashel between 8.30pm and 9.15pm are asked to share footage with gardaí.
Anyone with information is asked to contact Cahir Garda Station on 052 617 7640, the Garda Confidential Line on 1800 666 111 or any garda station.
Earlier, gardaí said they were in the process of "informing families of this tragic incident".
Twenty four-year-old Luke McSweeney, his 18-year-old sister Grace McSweeney and Zoey Coffey and Nicole Murphy, both also 18, were killed on Friday evening, hours after the teenagers received their Leaving Certificate exam results.
They were on their way to celebrate when the car they were travelling in overturned and hit a stone wall.
The funerals for the four young people will be held later this week, after thousands attended a vigil in Clonmel on Sunday to mourn the loss.
Additional reporting by PA
