A woman in her 60s has died and three others were injured following a three-vehicle collision in Dungarvan, Co Waterford.
The incident happened on the N25 at Moonameen at around 2.10pm.
The woman, who was a passenger in one of the cars, was pronounced dead at the scene.
A post-mortem examination is due to be carried out on her body.
The driver and passenger of a second car, both aged in their 50s, sustained "serious injuries" that are believed to be "non-life-threatening at this time", gardaí said.
They were taken to University Hospital Waterford for treatment.
Another woman aged in her 60s who was driving a third vehicle was taken by air ambulance to Cork University Hospital for treatment of "serious injuries" that are also believed to be "non-life-threatening at this time", gardaí said.
The road is closed as Garda Forensic Collision Investigators conduct a technical examination of the scene.
Local diversions are in place.
Gardaí have appealed to any road users who may have camera footage, including dash-cam, and were travelling in the area between 1.20pm and 2.20pm to make this footage available to them.
Anyone with any information is asked to contact Dungarvan Garda Station on 058 48600, the Garda Confidential Line on 1800 666 111 or any garda station.
Earlier two people died and two young children were injured in a two-vehicle collision in Co Cork.
