Image: Queensland Police Service Media
Fire investigators may not ever determine what sparked a blaze that ripped through two buildings in Bundaberg's Bourbong Street.
The Federal Backpackers and neighbouring Spotted Dog Tavern were left gutted after the fire on Monday night, with the hostel demolished the next day for safety reasons.
Queensland Fire and Emergency Services report the site was still smouldering on Thursday, three days after the incident.
Area Commander John Pappas said the tavern also suffered extensive damage and was still not safe.
"Our fire investigation team will work through and then the area will be made safe," Mr Pappas said.
"Unfortunately, that extensive damage means that there will need to be a lot of work undertaken."
On Thursday, Area Commander John Pappas said it was still too early to know exactly what caused the blaze - if we find out at all.
"It is not always practical to get in and find an exact cause. They will work as hard as they can to determine an area of origin and determine that cause."
Area Commander John Pappas says the incident "isn't just about a building".
62 backpackers were displaced in the blaze, most of whom lost everything.
"I can't reiterate how grateful I am for the support of the Bundaberg community in responding to this incident," Mr Pappas said.