Iarnróid Éireann has suspended all services to and from Heuston Station in Dublin until further notice.
It follows a tragic incident at Sallins in Co Kildare.
The rail company has tweeted the following;
Emergency services are at the scene.
The company’s doing what it can to facilitate rail users and KCLR News understands services continue between Waterford and stations in Carlow and Kilkenny.
You’ll find updates here