Services in and out of Heuston Station were temporarily suspended earlier this evening after a woman fell on the track.
The incident affected commuters travelling in the direction of Kildare stations.
A spokesperson for Irish Rail said emergency services were called to the scene.
Services are now back up and running but passengers are warned to expect delays to scheduled times.
An Irish Rail spokesperson said earlier: "Due to trespassing on the line, services in and out of Heuston are temporarily suspended."
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