ScotRail has confirmed that an emergency timetable will be implemented due to rail crew shortages and a derailment incident at Coatbridge Sunnyside.
Customers have been asked to check journey travel times due to the disruption which will impact the majority of the Central Belt.
The crew shortages have been attributed to delays in training new recruits due to the pandemic.
In a statement, ScotRail said: "As a result of substantial train crew shortages and our on-going derailment incident at Coatbridge Sunnyside, an Emergency Timetable will be implemented on the North Clyde route for start of service tomorrow.
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"The following hourly services will be running; Balloch – Springburn Milngavie – Anniesland shuttle service Helensburgh – Shettleston Bathgate – Edinburgh Waverley."
It continued: "This plan has been implemented to improve overall reliability and to avoid sporadic cancellations. Services listed will be formed of 6 cars, rail replacement buses have been requested to operate between Shettleston and Bathgate.
"Please keep an eye on our website, app, and JourneyCheck for updates. We’re unable to check each individual journey, so please continue to check for any changes made to your service."