A total of 10 fire appliances tackled a Glasgow city centre fire in the early hours of the morning on December 15. 

Fire crews descended onto Pitt Street at the junction with Sauchiehall Street after receiving reports of the fire at 1.52am. 

The cause of the fire is not yet known, but the Scottish Fire and Rescue Service reports the fire broke out in a commercial business within the building. 

Three restaurants are located on the premises - Krave, Alla Italia and Cafe Antipasti. 

According to fire services, the fire spread into the four-storey residential building above the premises. 

Glasgow Times:

Smoke could be seen billowing out of the first floor window above Krave. 

READ MORE: Fire crews tackle burning Krave building near Glasgow Sauchiehall Street

There are no reported casualties but police and ambulance crews were also in attendance. 

At the height of the incident, 10 fire appliances were in attendance as firefighters worked to search and clear the building. 

At 6am on Sunday morning, 4 hours after the initial report, fire officers announced the fire was extinguished but work continued to ensure the area is safe. 

Area Commander Garry MacKay said: “It was a very challenging incident and crews worked incredibly hard to extinguish the fire and ensure all properties were searched and cleared.

Glasgow Times:

"Firefighters are now aggressively cutting away parts of the building to ensure there is no hidden fire spread. We will remain at the scene.”

AC MacKay added: “I would like to thank our police and ambulance service partners who provided support throughout this incident.”

The incident took place just metres away from the O2 ABC which was destroyed in the Glasgow School of Art fire in June of last year. 

A police spokeswoman said: "We were called at 2am to assist our colleagues in the fire service."