Dozens of trains have been cancelled due to a major network issue.
Scotrail announced on Twitter that fibre cable failure is affecting several services to and from Glasgow this morning.
Specialist engineering teams are on site to make repairs, though journeys have been disrupted until around noon according to JourneyCheck.
The post on Twitter read: "Due to a major fault with the communication system between drivers and signallers, services have been severely affected.
"We strongly advise customers check to see if their journey is being affected before heading to the station and recommend making alternative arrangements if you possibly can.
"We’re unable to run any services on the Argyle or North Clyde routes (see earlier tweets) and do not have a timescale for when services can resume. This is a major fault.
"We ask that you make your own arrangements if you can and apologise for the disruption."
The affected routes so far are:
- Helensburgh Central – Edinburgh
- Balloch – Airdrie
- Dalmuir – Larkhall
- Milngavie – Motherwell
- Milngavie – Edinburgh via Airdrie
- Motherwell – Dalmuir
- Dalmuir – Whifflet
- Larkhall – Milngavie
- Milngavie – Springburn
Scotrail apologised to customers and added: "Engineers are working hard to resolve the technical fault."
The rail service has announced some replacement buses for customers and alternative train routes are in place, though services are limited.
For further information on disrupted services, visit Journeycheck.
