Crews from the Chester and Joplin area helped tackle fire burning several miles north of the U.S.-Canada border on Sunday.
Chester Fire Department Assistant Fire Chief James Dahlen says the fire most likely started after Saturday's lightning storm and flared up again Sunday.
He estimated the fire burned more than 1,500 acres as area fire departments and Canadian resources fought the fire. Dahlen says crews have gained the upper hand in the battle and are working to contain the fire.
A small fire also sparked around 25 miles south of Chester on Sunday. Dahlen estimates the fire burned around five acres. He says farm equipment seems to be responsible.