FOLEY -- Authorities in Benton County are investigating a series of arson wildfires.

Sheriff Brad Bennett says there have three such fires already this spring.

The grassfires pose a threat to the public, natural resources and private property.

Bennett says they have had a problem with arson wildfires over the past several years and they are looking for help in solving the crimes.

If you have information on these arson wildfires, call Benton County Sheriff's Department at 968-7201 or the Arson Tip Line at 1-800-723-2020.