Train commuters from West Auckland are being advised of possible delays and disruptions to their usual schedule due to a reduced timetable today.
Auckland Transport says services on the Western Line will run at a reduced timetable as Kiwirail investigates a subsidence issue on the line.
Only a single track will be operational, as a precaution, from this morning.
"Train services will need to operate every 30 minutes between Swanson and New Lynn; with services between New Lynn and Britomart running every 20 minutes," AT said in a statement last night.