ScotRail has announced that "all lines" between Glasgow Queen Street Low Level and Bellgrove are closed due to an electrical fault.
At approximately 7.30am, the rail operator took to Twitter to reveal that a small fire had caused a failure of the electric supply, impacting services running the full route between Edinburgh and Helensburgh, Milngavie, and Balloch.
Writing on Twitter, the operator said: "Due to failure of the electricity supply between Glasgow Queen Street Low Level and Bellgrove, all lines are closed.