People traversing the country for the long weekend are facing a big delay if travelling on certain rail services between Ireland's two biggest cities.
Irish Rail said that anyone travelling on services between Dublin and Cork on Friday can expect delays of around one hour.
This applies to those on Dublin Heuston to Cork and Cork to Dublin Heuston trains, as well as some services between Dublin and Limerick.
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The delays are being experienced between Ballybrophy and Thurles due to a mechanical issue onboard a train in the area.
Passengers on one service departing Cork at 1.25pm were told to expect delays of 77 minutes.
The 2pm service from Heuston to Cork operated with 60-minute delays, while those travelling between Dublin and Limerick were also impacted by an hour-long setback on the 3.30pm service.
Irish Rail apologised to customers and said crews were working to move the broken down train from Templemore Station.
The rail service said on Twitter: "Delays of approximately 60 minutes on some Cork - Heuston and Heuston - Cork services in both directions between Ballybrophy and Thurles due to an earlier mechanical issue onboard a train in the area. Update to follow."
They added: "Delays of approximately 60 minutes to services between Ballybrophy and Thurles due to a mechanical issue onboard a train in the area. Crews are working to move this train."
In a subsequent update, they said: "Delays of approximately 60 minutes between Ballybrophy and Thurles.
"13:25 Cork-Heuston approximately 77 minutes delayed.
"14:00 Heuston-Cork expected to operate 60 minutes delayed.
"15:30 Heuston-Limerick expected to operate 60 minutes delayed."
It comes as thousands of people are moving across Ireland on Friday, the second of a double bank holiday for St Patrick's Day.
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