The State Fire Marshal’s Office has concluded that the fire at the Cowan Mill Wednesday afternoon was arson.

In a press release, the state posted a $5000 reward on this afternoon for information leading to the successful arrest and prosecution of the person or persons responsible for seeting the fire.

Anyone with information that can aid investigators is asked to call the Lewiston Police department at 784-6421or the Fire Marshal’s arson hotline at 1-888-870-6162.

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