Rail passengers experienced delays following the discovery of smoke coming from a carriage on the Galway-Dublin train.
A spokesperson for Irish Rail said passengers on the 18.05 service from Galway to Dublin were moved to a safer part of the train while the incident was dealt with.
The train was stopped close to Sallins, Co Kildare.
It is thought that the incident occurred when a parking brake was left on.
Other services from the west and south-east were affected.
Bus services were provided for passengers affected by the stoppage.
