Four people have died in separate road incidents since New Year’s Eve, with one crash leaving a 12-year-old boy in serious condition in hospital.
The latest fatalities bring the number of people killed on Irish roads so far this week to 13.
On New Year’s Day, a male motorcyclist, aged 19, was killed when his bike struck a lamppost.
The incident occurred shortly after 3.30pm at Sillogue Road in Ballymun.
Gardaí and emergency services attended the scene but the motorcyclist was pronounced dead a short time later.
The scene is being examined by Garda Forensic Collison investigators and the road is currently closed at the crash site.
Local diversions are in place and the deceased has been removed to the Dublin City Morgue where the coroner has been notified.
Gardaí are appealing for anyone who may have camera footage from the area at the time to make it available to gardaí.
Anyone with information is asked to contact Ballymun Garda Station on 01 666 4400, the Garda Confidential Line on 1800 666 111, or any Garda Station.
Three people in their 20s were killed in a fatal road traffic collision involving two cars in Meath on New Year’s Eve.
A young boy is also in serious condition in hospital following the incident.
The collision happened at 4.15pm yesterday on the N52 slip road in Kells off the M3 motorway.
A female in her 20s, the driver of one of the cars was pronounced dead at the scene.
Her passenger, a man in his 20s, was treated at the scene however he died en route to Connolly Hospital Blanchardstown.
The driver of the second car, another female in her 20s, was brought to Connolly Hospital Blanchardstown to be treated for her injuries where she later passed away.
Three children were travelling in the second car and were brought to Our Lady of Lourdes Drogheda to be treated for their injuries.
One child has since been