Rush hour train services in and out of Glasgow Central have been majorly disrupted for over six hours after a fault was identified.
National Rail declared an incident in Glasgow at around 6am on Thursday morning as services were cancelled due to signalling fault.
Services from Glasgow Central to Kilmarnock, including the 6.27am and 7.21am journeys were cancelled.
Cancellations were also confirmed on services to Gourock, with the 8.02am journey to Glasgow no longer running.
Passengers on routes to Paisley Canal, Newton, Largs, Neilston, Barrhead and East Kilbride are also being advised of cancellations.
Delays and alterations are also expected on services to and from Edinburgh Waverley.
The Ardrossan South Beach, Irvine, Carstairs, Lanark, Auchinleck, Prestwick Town and Carlisle lines are also affected.
Circular services from Central could also face disruption.
A Network Rail statement read: “Our engineers are currently working on repairing a fault with the points at Shields Depot.
“Due to its location, this fault will affect some services coming into and leaving Glasgow Central.
“Engineers remain on site and are continuing to work on this fault. A line blockage is required for this work to be completed.”
A further statement confirmed services to Paisley Canal would be cancelled from 10am to allow engineers access.
An update on X read: “Sorry if you’ve been affected by the signalling fault between Glasgow Central and Paisley this morning. We need 30 mins on track to fix the fault.
“We’ve agreed with ScotRail for 4 Paisley Canal services to be cancelled from 10:00 to allow our engineers safe access.”
ScotRail say engineers are on site to fix the issue with major disruption expected to last until midday.
They wrote on X: “We’ve been advised that there is a fault with a set of points which is affecting trains leaving our Shields depot this morning.
“This means services to/from Glasgow Central may be cancelled, delayed, or revised. Engineers are on-site working on the fault.”
Follow STV News on WhatsApp
Scan the QR code on your mobile device for all the latest news from around the country