Glasgow's Subway service has been suspended on both circles following an incident this afternoon.
The customer travel information from SPT confirmed the lines were shut down "due to a passenger incident" with police informed.
It is not known if anyone has been injured in the incident or when the service will resume, with SPT confirming they will "update when services resume".
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Glasgow Subway Customer Service tweeted: "Apologies all, Subway is currently suspended on both circles due to a passenger incident. Police have been notified. Will update when services resume. Apologies for the inconvenience."
Police Scotland has been contacted for comment.
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