Irish Rail are expecting "very significant" delays as emergency services respond to a "tragic incident" at Harmonstown.
Trains have been suspended in Dublin between Howth Junction and Clontarf Road, which has affected concertgoers on the way to Malahide Castle for LCD Soundsystem.
Dublin Bus are accepting rail tickets for northside routes, while a bus transfer is being arranged between Connolly Station and Drogheda.
Update: trains suspended between Howth Junction & Clontarf Rd due to tragic incident at Harmonstown, emergency services attending.
— Iarnród Éireann (@IrishRail) June 5, 2018
Dublin Bus accepting rail tickets for northside routes, bus transfer being arranged for Enterprise between Connolly and Drogheda
Those on the train can't be allowed to disembark as emergency services attend the scene.
We cannot move at present or detrain people as scene of tragic incident is v distressing and is being attended by emergency services - lengthy delay is unavoidable, apologies
— Iarnród Éireann (@IrishRail) June 5, 2018