Gladewater --The Gregg County Fire Marshal tells KETK, the fire was first called in by a passerby at 1:25 a.m. Monday.
No one was injured and the building was empty when the fire began.
Investigators have yet to determine the cause of the fire.
Firefighters continue to put out remaining hot spots.
The Gladewater Fire Department has contained a fire at Southwest Plastics on the south loop in Gladewater.
Fire officials tell us, the blaze started at 1:25 a.m. Monday morning.
There are only spot fires remaining, and the fire is under control.
Investigators have not been allowed in the building yet to determine a cause.
KETK will bring you more information as it becomes available.