The Tasmania Fire Service has praised the efforts of staff at a Hungry Jacks store in Glenorchy after fire tore through the building on Tuesday night.
Regional fire investigator Tim McKay says the quick thinking of workers at the restaurant ensured patrons were evacuated when the fire broke out at about 8.30pm.
Crews from Glenorchy, Bridgewater and Hobart were called to the scene and on arrival found the building to be fully involved in fire.
The fire was extinguished shortly before 11pm, however the building was completely destroyed.
Investigations into the fire are continuing but it is believed to have started in the kitchen, with the damage bill expected to be more than $5 million.
Fire investigators have been examining the scene on Wednesday to determine the cause.
