Investigators have confirmed that some threw a fire starting device, possibly a molotov cocktail, into the windows of the building to start that fire.  

Firefighters responded to Scrap Aluminum Processor at Beaver and Edgewood around 2 a.m. to find flames shooting out of the building's roof. 

"Ladder 57 directed their ladder pipe, and  we as we always say, 'big fire big water,' were able to drown the fire, " says Tom Francis with Jacksonville Fire and Rescue.

There is as much as $60,000 in damage, however no one was hurt.