Two pedestrians have been killed when they were hit by a car driven by an off-duty garda.
The Garda Ombudsman is investigating the accident, which happened on the N20 at Dooradoyle on the outskirts of Limerick city in the early hours of Thursday.
The victims, two men in their 20s, died at the scene. The area has been preserved as forensic officers and Ombudsman's investigators examine the scene.
Elsewhere a garda is being treated in hospital after being struck by a car in Cork.
The incident happened 5.20pm on Wednesday while the officer was on traffic duty in Blarney.
He sustained injuries to his leg and hip and was taken to Cork University Hospital for treatment.
A garda spokesman said the male driver was helping officers with their inquiries.
Meanwhile a 17-year-old driver died when his car left the road and struck a fence. A male passenger received minor injuries.
The accident happened at Derryadd, Killeigh, Co Offaly, shortly after 10pm on Wednesday
The body of the teenager, who died at the scene, was taken to Tullamore General Hospital for a post-mortem examination.