Fire investigators have determined the probable cause of a 4,440-acre wildfire in northwestern Minnesota was arson.
The wildfire started Sept. 30 in an area north of the intersection of County Road 27 and 250th Avenue NW in Marshall County. By the next day, it had grown to 500 acres, eventually swelling to more than 4,000 acres.
The fire destroyed 11 homes, damaged dozens of structures and led to the evacuation of part of the city of Karlstad, Minn.
Fires started by arsonists cost Minnesota taxpayers millions of dollars each year.
An investigation is ongoing by the Kittson County Sheriff, the Marshall County Sheriff and the Minnesota Department of Natural Resources. They are offering a reward of up to $6,000 for information leading to the identification of the person who intentionally set the fire.
Anyone with information is encouraged to contact either Kittson County at 218-843-3535 or Marshall County at 218-745-5411. For those who wish to remain anonymous, call the Arson Tip Line at 1-800-723-2020.