DART services have been disrupted in Dublin this morning due to a major signalling fault at Pearse Station.
A limited DART service is operating, with DART services every 20 minutes in each direction.
Drogheda and Maynooth suburban services will operate to and from Connolly Station, rather than Pearse Station.
Iarnród Eireann said signalling teams are working to rectify the problem, which followed flooding of signalling facilities at Pearse Station.