Trains were unable to run in and out of a Glasgow train station during morning rush hour after a road rail vehicle broke down.

ScotRail announced on Tuesday morning that the breakdown near Queen Street station meant upper level trains were not able to arrive in or depart from the station.

Commuters faced major disruption, with most services between Edinburgh and Glasgow cancelled.

ScotRail said services were beginning to get back to normal after 8am.

A Network Rail spokesman said: "Overnight, Network Rail engineers were carrying out work to the track and overhead line equipment at Cowlais.

"Shortly before 04.00, a piece of machinery broke down. Network Rail workers are currently working to remove the failed equipment.

"Due to the nature of the incident, no trains are currently able to run from the high-level platforms at Glasgow Queen Street railway station.

"Passengers are urged to check before they travel via National Rail Enquiries or with their train operator.

"We'd like to apologise for any disruption this incident is causing and thank passengers for their patience."