Those travelling by train between Glasgow Central and Edinburgh have been warned to brace for delays and cancellations this afternoon.
A safety inspection is being carried out on a track at Slateford and all lines have been closed. Train services between Glasgow Central and Edinburgh via Shotts will be cancelled, delayed or revised.
Network Rail Scotland said staff have found a "small defect" and are currently carrying out repair works - the line will reopen once they are complete.
READ MORE: Man dies following Paisley car crash after emergency services rush to the scene
The following services are still running:
Glasgow Central to Lanark - Customers can travel on these services for Uddingston and Bellshill
Glasgow Queen Street to Edinburgh via Bathgate and Falkirk High
You can use ScotRail tickets and Smartcards on @EdinburghTrams between Edinburgh (St Andrews Square) – Haymarket – Edinburgh Park – Edinburgh Gateway in either direction. Just show your valid ticket or Smartcard to the on-tram staff.
While the line remains closed, travellers can access a number of Lothian bus services using their train ticket. You'll need to show your valid ticket or Smartcard to the driver when you board the bus.
The alternative bus routes you can take are:
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