The incident happened last night and guards are appealing for witnesses.
A man in his 20s has died after a hit and run on the northside.
Emergency services were alerted to the incident on Railway Street in Balbriggan, shortly after 9pm last night when a pedestrian was hit by a car.
The vehicle involved failed to remain at the scene.
A man in his 20s, was treated at the scene but died there a short time later.
The scene remains closed off while a technical exams is carried out.
Gardaí are appealing to anyone who may have witnessed what happened, to get in touch with them.
A garda spokesperson said, "Gardaí and emergency services were alerted shortly after 9pm on Monday, 23rd June 2025, following a serious road traffic collision on Railway Street, Balbriggan, Co. Dublin, in which a pedestrian was struck by a car."
"The vehicle involved failed to remain at the scene.
"The pedestrian, a man in his 20s, received emergency treatment but was pronounced deceased at the scene a short time later.
"The scene remains preserved pending examination by Garda Forensic Collision Investigators. Local traffic diversions are currently in place.
"Gardaí are appealing to anyone who may have witnessed the incident to come forward.
"Any road users or pedestrians who may have camera footage (including dash-cam) from the area at the time are asked to make it available to Gardaí.
"Anyone with information is asked to contact Balbriggan Garda Station on 01 666 4500, the Garda Confidential Line on 1800 666 111, or any Garda station."
