
Irish Rail is organising bus transfers.
The train line between Thurles and Portlaoise has been closed due to a fatal incident on the line.
Irish Rail says bus transfers are being organised for the 10 o'clock Heuston to Cork and 10.20 Cork to Heuston services.
Significant knock-on delays are expected for all Cork, Kerry and Limerick services.
Commuter services between Portlaoise and Heuston are expected to operate as scheduled.