Scotland's biggest train station, Glasgow Central, has been closed following a major fire.
Extensive damage was caused to the interior of the 19th century building and a dome partially collapsed.
The station is likely to remain shut until Wednesday, causing major travel disruption.
The fire broke out in a neighbouring building last night. Nearby hotels were evacuated and roads were sealed off.
Fire crews used aerial platforms to hose water onto what remains of the station, as smoke hung in the air.
Only the facade of the building, at the corner of Gordon Street and Union Street, has been left standing.
It is thought the fire started at a vape shop on Union Street before spreading to part of the same structure on Gordon Street.
No injuries have been reported.
A Scottish Fire and Rescue Service spokesperson said: "This has been a significant incident in Glasgow city centre, which has involved hundreds of firefighters working tirelessly since yesterday afternoon.
"We have now scaled back and eight appliances, including three high-reach vehicles, remain in attendance."
A spokesperson for Network Rail, which manages much of the UK's train network, said: "Glasgow Central Station remains closed following the fire in a building on Union Street on Sunday.
"While the fire is now under control, emergency services are still on site and we continue to support their response.
"The station will remain closed today and likely tomorrow. Timescales for reopening will only be confirmed once we are able to safely gain access and carry out the necessary checks.
"All services to and from Glasgow Central are currently suspended, and passengers should continue to follow alternative travel arrangements as advised by their train operators".
People standing at the police cordon spoke of their shock.
Emma Reid, from Glasgow, said: "It’s just so sad. It’s such an iconic building. It’s so sad".
Rumaisah Imrane, originally from Glasgow but living in Edinburgh, said: "It’s terrifying, it looks like the whole building is just gone.
"It’s such a beautiful part of the city and Central Station is such a lovely building".
Carolyn Bowie stopped to watch as her son - one of the firefighters - tackled the blaze.
"It’s devastating and a big blow for Glasgow," she said.
A member of the Scottish Parliament said that some of the elevation of the building had survived the fire.
Speaking at the scene, Labour's Paul Sweeney said that he hoped there could be a "reinstatement" rather than a full rebuild.