Fire officials say something within the warehouse catches fire and causes the entire building to go up in flames around 6am Saturday morning. 

They note there are chemicals inside the building spanning hundreds of square metres and there could be chemicals in the smoke.

The fire causes the roof to sag and collapse. The fire does not appear to have damaged nearby buildings.

Nearly everything inside the warehouse is lost.

Officials are still working to determine the cause of the fire. 

Fire marshals will remain on the scene to continue investigating.

No injuries have been reported.