Two men in their 20s have died in separate single-vehicle crashes in counties Cork and Wexford.
A 24-year-old man died in a road crash in Co Cork.
The collision happened at Killeady, Crossbarry, at about 3am.
A passenger in his 30s was seriously injured and is being treated at Cork University Hospital where he is described as being in a stable condition.
The Crossbarry to Halfway Road was closed for a technical examination but has since reopened.
Witnesses have been asked to contact Bandon Garda Station on 023-8852200 or the Garda Confidential Telephone Line on 1800-666111.
In Co Wexford, a 23-year-old man was killed in a crash at Ballyedmond, Gorey at around 11.10pm last night.
The man, who was travelling alone, died after his car hit a ditch. He was pronounced dead at the scene.
Anyone who witnessed the crashed is asked to contact Enniscorthy Garda Station on 053-9242580 or the Garda Confidential Telephone Line on 1800-666111.
In Sligo, a man died when his car went over a cliff at Mullaghmore.
The man's body was recovered after a person who saw the vehicle at the foot of the cliffs alerted emergency services at about 4pm today.
