The incident happened on the Rush Road in Skerries at around 12.30am
Gardaí have appealed for witnesses after a woman in her 20s died in a crash in Dublin this morning.
She was a front seat passenger in a car which hit a wall on the Rush Road in Skerries at around 12.30am.
No other vehicles were involved in the crash.
The driver - who is in his 20s - and another female passenger - who is in her late teens - were taken to Beaumont Hospital for treatment.
Gardaí have closed the road for a forensic examination.
Anybody who was in the area between midnight and 12.30am or anyone with information is being asked to contact Balbriggan Garda Station on 01-802-0510 or the Garda Confidential line on 1800-666-111.