The Sligo-Connolly train service was delayed last night following an incident on the line between Edgeworthstown and Mullingar.
It's understood that the train struck an individual just after 9.20pm near Lough Owel causing fatal injuries.
Irish Rail has confirmed that the line was closed for a number of hours and emergency services attended the scene.
The line was subsequently closed for a number of hours but has since re-opened
Services are running as normal this morning.