The Natrona County Fire District put out several fires Monday morning west of Casper, according to the district's Facebook page.

The fire protection district and the Mills Fire Department responded to West Yellowstone Highway/U.S. Highway 20-26 between Queen Street and the Ghost Town Truckstop.

The cause of the fires is under investigation.

The Natrona County Fire District reminds the public that fuels are dry and tall, the weather is hot, and it takes just one heat source to start a fire.