Gardaí are currently at the scene of a fatal road traffic collision in County Sligo.
It occurred on the N15 near Rathcormack this morning at approximately 11.50am.
Two cars collided and the driver of one car, a male aged in his 40s, received fatal injuries upon impact.
He was pronounced dead at the scene.
The passenger of this car was treated at the scene.
The female driver of the second car, who is in her 30's, was taken to University Hospital Galway by air ambulance where her condition is described as serious.
Both passengers of the second car were also removed to hospital with serious injuries.
The road is currently closed as the scene is being examined by Forensic Collision Investigators.
Local diversions are in place.
Gardaí are appealing to anyone who may have witnessed the collision, or who may have any information in relation to the collision, to come forward.
Gardaí are appealing to any road users who were travelling on the N15 between Sligo and Rathcormack between 11.30am and 12.15pm this morning to contact them.
Anyone who may have camera footage (including dash-cam) should make it available Gardaí.
Anyone with any information is asked to contact Sligo Garda Station on 071 915 7000, the Garda Confidential Line on 1800 666 111 or any Garda station.