Nine people were injured on 9 August 2026 when a car carrying eight male juveniles, travelling northbound in a southbound lane of Dublin's M50, collided head-on with another vehicle near Junction 12, Firhouse, at approximately 5:30am local time. One of the teenagers remains in a critical condition, while the driver of the second car, a man in his 20s, suffered serious injuries.
Gardaí said the vehicle carrying the teenagers had entered the motorway the wrong way, driving up the southbound off-ramp before striking the oncoming car. All nine people involved were taken to hospital, according to a Garda spokesperson cited by extra.ie.
What caused the road closures?
The crash forced the closure of the M50 southbound between Junction 12 and Junction 11, with local diversions put in place while emergency services dealt with the scene. Traffic monitoring account M50 Dublin confirmed the closure affected the stretch between Junction 11 Tallaght and Junction 12 Firhouse, and advised motorists to seek alternative routes as the off-slip at Junction 12 was shut, according to a report from a national broadcaster's report.
What are gardaí investigating?
A forensic collision examination is currently under way to establish exactly how the crash unfolded. Gardaí are appealing to anyone who was travelling on the M50 between Junction 14 and Junction 11 between 5:00am and 5:30am on Sunday 9 August 2026, or who may hold dashcam footage of the area at that time, to come forward with information, as reported by extra.ie.
Witnesses or anyone with relevant footage have been asked to contact Tallaght Garda Station, the Garda Confidential Line, or any Garda station, according to the same report.
How does this compare with other recent crashes?
Serious collisions on the M50 have previously triggered lengthy closures while Garda forensic collision investigators examine the scene, a process that typically involves photographing the area, measuring distances, and mapping debris to reconstruct how a crash happened, according to earlier reporting from the Irish Times.
This incident also follows a series of recent road collisions across the country. Just weeks earlier, three men were killed in separate weekend crashes across the Republic in Donegal, Cork and Kildare, while a woman died and a child was critically injured in a car-truck crash in County Cavan on 25 July 2026.
What happens next?
The investigation into Sunday's crash remains ongoing, with gardaí continuing to appeal for witnesses and dashcam footage as they piece together the circumstances that led to the vehicle entering the motorway against the flow of traffic.
- Nine people were hospitalised following the collision on 9 August 2026.
- Eight male juveniles were travelling in the car that entered the motorway in the wrong direction.
- One teenager remains in a critical condition; the other driver, a man in his 20s, has serious injuries.
- The M50 southbound between Junctions 11 and 12 was closed, with the Junction 12 off-slip also shut.
- Gardaí are appealing for witnesses and dashcam footage from 5:00am to 5:30am on the day of the crash.
