There were a number of disruptions to Iarnród Éireann trains this morning due to a signalling fault.
However, the company says all services are now back up and running.
Sligo to Dublin trains were cancelled this morning, including Longford commuter services.
The Clonsilla-Docklands services were cancelled too, as well as Northern commuter services, Dundalk/Drogheda to Dublin, including Dundalk to Dublin. Malahide DART services were also cancelled.
