A grass fire has blackened more than a square mile of land in western Nebraska.

Logan County Fire Chief Frank Kramer says firefighters were first dispatched about 4:30 p.m. Tuesday to a spot along U.S. Highway 83 south of Stapleton.

Crews from Stapleton, Tryon, Arnold and North Platte battled the blaze for about five hours on Tuesday and worked on hot spots for a few more hours on Wednesday morning.

Kramer says the flames threatened one home but stopped short. No injuries have been reported.

Kramer says a spark from a chain saw started the fire.