It is understood that the incident, which is said to have involved a ScotRail train, took place at the Yoker yard on Saturday.
This is a train servicing depot.
Several residents in the Yoker, Knightswood, and Milngavie areas took to social media to report hearing a ‘big bang’ at around 9am.
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It is understood there were no injuries.
The rail operator is now investigating the incident.
David Lister, ScotRail safety, sustainability and asset director, said: “The safety of our customers and staff is our top priority and the incident is now being investigated.”
