Another three lose their lives on roads at weekend
Three other people, including two men barely out of their teens, were killed on the country's roads over the past two days.
The deaths come after gardai last week revealed that half of all road deaths so far this year are young drivers aged 16-30. Of those, three-quarters were male.
Two young men died in a single- car accident in north Dublin in the early hours of yesterday morning.
The driver of the car, named locally as James Keegan, from Clondalkin, in his early 20s, died at the scene of the accident at Ballygall Road East, shortly before 7am yesterday.
The 21-year-old passenger, named locally as Liam Lawless, of Ballygall Parade, died at the Mater Hospital yesterday afternoon.
It is understood that the car flipped over and cutting tools had to be used to free the two young men from the car.
Local Sinn Fein councillor Dessie Ellis said: "This is another terrible tragedy, particularly for the two families concerned. Words can't describe the impact it will have on them. Something like this comes out of the blue and two young lives have been lost when they should have had everything in front of them," he said.
Any witnesses to the collision are asked to contact gardai at Ballymun on 01 6664400.
A man, believed to be from Waterford, died in a car crash on the N9 at Killinane, Leighlinbridge, Co Carlow, on Saturday morning at about 7.25.
The man, who was driving a Mercedes which was involved in a collision with a smaller car, is understood to have been in his 60s. He has not yet been named.
The woman driver of the other car, and a passenger, were taken to St Luke's Hospital in Kilkenny.
Gardai have asked anyone who was on the N9 yesterday between 7am and 8am to contact Carlow garda station on 059 9136620. In particular, they would like to talk to a man in a dark tracksuit who was in the area at around the time of the crash.
A motorcyclist was seriously injured in a collision with a car at Renmore in Galway city on Saturday afternoon. The man was rushed by ambulance to Galway University Hospital where he underwent emergency surgery for serious injuries.