BREWSTER COUNTY, Texas - A Texas Department of Public Safety trooper was seriously injured and a pickup truck driver was killed Tuesday morning in a head-on crash on U.S. Highway 67 in Brewster County, authorities said.

What we know: The injured trooper was identified as Zachary Vasquez of Alpine, according to the Department of Public Safety Officers Association.

Vasquez's canine partner, Guido, was also in the patrol vehicle but escaped major injury.