(KSL News) -- Investigators are now sure last Friday's big fire in Salt Lake was intentionally set.
The fire at Smurfit-Stone's bag plant caused over $10-million in damage. Investigators say flames started in one place and an accelerant was used to quickly spread them.
They say the burn pattern, the fire's progression, and interviews with witnesses support their conclusion of arson.
If you saw anything suspicious that night, contact police.
The plant is expected to be online at about 70- or 80- percent early next week.