Authorities say wildfires in the Texas Panhandle have claimed another life, bringing the four-state death count from wildfires to five.

Hemphill County Judge George Briant said Tuesday that the fourth death in the Texas Panhandle was caused by a blaze near the Oklahoma border that has burned 156 square miles of land. That fire was only about 5 percent contained Tuesday morning.

Authorities said earlier Tuesday that three ranch hands were killed by another fire in the Panhandle. Gray County emergency management coordinator Sandi Martin identified the three as Emmert Sloan, Cody Crockett and Sydney Wallace. She says Crockett and Wallace were in their early 20s and Sloan's age was not known.

The fifth death was that of an Oklahoma truck driver who was killed by smoke inhalation on a highway in southern Kansas.

The fires in Texas, Kansas, Oklahoma and Colorado have driven thousands of people from their homes and scorched hundreds of square miles of land.