The amount of damage caused by Tuesday night’s fire down Margaret Street is making it virtually impossible for investigators to find the cause.
Fire and Emergencies Acting Chief Superintendent Megan Stiffler says they believe the fire started under the floor space of the restaurant.
She says gas lines contributed to the fires intensity but says there is so much damage they can’t identify a cause.
Both the Mexican restaurant and the Adrenaline Rock Climbing Gym were both destroyed in the inferno with the Quest Toowoomba having to close its doors for two weeks while repairs are taken out on the building.
Adrenaline owners say they cannot afford to rebuild and are still coming to terms with the loss.