An infant child was among those killed in a fatal car crash near Ballinasloe in county Galway.
It's understood a family of three were among the four people who died in the incident.
It’s believed the three vehicle crash happened after one of the cars was travelling in the wrong direction along the M6 motorway.
It’s understood that a family of three - a mother, father, and child were in one of the vehicles.
And all died in the collision. They are not thought to be from the area.
The occupant of one of the other cars also died, while the driver of the third was taken to hospital with non life threatening injuries.
Gardaí are appealing for anyone with information to contact Ballinasloe Garda station.