Police and RFS officers remain on the scene at Wiseman's ferry road, after the Mangrove Mountain Community Children's Centre was completely destroyed by fire early this morning.
Brisbane Water officers saying the fire's not believed to be suspicious, and that it was discovered when a cleaner walked into one of the buildings. Initially there were only small flames and smoke, but a bigger fire then erupted.
Firefighters found the building unoccupied and well alight around 5:20am, working to extinguish the flames and protect surrounding buildings from damage.
Rural firies were also needed on the M1 this morning, when a prime mover caught fire.
An issue with its brakes believed to have sparked the inferno just before 6:30.
It closed one southbound lane at Jolls Bridge for over an hour, and traffic's still getting back to normal in the area.