Dart services have been suspended between Bray and Greystones after an incident on the rail tracks.
The incident took place between Greystones train station and the first tunnel at Bray Head.
Commuters travelling by Dart have been asked to take alternative routes due to the incident.
Update: Services remain suspended between Bray & Greystones due to an incident on the line. Dublin Bus are honouring Rail Tickets
— Iarnród Éireann (@IrishRail) April 20, 2016
Dublin Bus are accepting passengers Dart tickets to and from Greystones and bus transfers are being arranged for Greystones to Rosslare services.