Police will return to a factory at Molendinar which was gutted by fire early on Monday morning.
Officers were called to the building on Manufacturer Drive around 12.15am and found smoke coming from inside and a glass front window smashed.
Police used a garden hose in an attempt to control the fire until fire crews arrived on the scene.
ARTICLE CONTINUES AFTER THIS ADVERTISEMENT
The Queensland Fire and Emergency Services extinguished the blaze and managed to contain it an office area of the factory.
Police have declared a crime scene and have kept guard at the factory overnight.
Anyone who may have noticed any suspicious activity, people or vehicles in the area this morning are urged to contact Crime Stoppers on 1800 333 000.