Fire crews battled for four hours to bring a deliberate blaze at a former nursery in Springburn under control.
Emergency services were called to a fire at the disused building on Millerbank Street around 4.56pm on Thursday afternoon.
An initial six fire engines were sent to the scene with a further three later dispatched to help get the blaze under control.
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It's understood that the fire broke out on the ground floor of the C-listed building.
The former nursery school, which was designed by David Thompson, dates back to the 19th century. It was placed on the Buildings At Risk register in 2016.
Glasgow City Council had previously sought a buyer to restore the 'outstanding' heritage asset with Historic Environment Scotland also supporting sustainable reuse of the building.
In December 2022, the City Property Glasgow website noted they were considering offers from the recent marketing of the site.
The extent of the damage to the building is currently unknown.
A Scottish Fire and Rescue Service spokesperson said: “We were alerted at 4.56pm on Thursday, 23 February to reports of a fire within a disused building on Millerbank Street, Springburn.
"Operations Control mobilised an initial six fire appliances, increasing to nine appliances, to tackle the blaze affecting the ground floor of the building.
"There were no casualties and crews left at 8.59pm after ensuring the area was made safe."
A Police Scotland spokesperson said: “Officers were called to assist Scottish Fire and Rescue Service colleagues at the scene of a fire at a derelict building in the Gourlay Street area of Glasgow, which was reported around 4.45pm on Thursday, 23 February, 2023.
“The fire was extinguished and there were no injuries reported. The fire is being treated as wilful and enquiries remain ongoing.”
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