Hundreds of shoppers and members of staff were evacuated from Buchanan Galleries after white smoke was seen inside the packed shopping centre.
Emergency services rushed to the scene when the fire was discovered at about 10.40am. It is believed firefighters were forced to demolish walls to access the cavities to extinguish the fire.
Last night Glasgow City Council building control officers were called in to carry out an inspection of the building. It is feared that the loss of trade from yesterday's closure alone could run into many thousands of pounds.
Picture: Stewart Attwood