The Morton Warehouse is still being considered an active fire scene, although it is under control.
Indiana State Fire Marshals and ATF are in Evansville and plan on starting their investigation on the cause sometime today.
Four buildings, besides the warehouse were destroyed by the fire.
One of those businesses was North Side Auto Spring, nearly three quarters of the building was lost.
Also, officials are urging the public to have patience with the road closures surrounding the warehouse.
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