A school system in Texas confirmed this morning that all schools in the district were on lockdown after an active shooter situation, CBS 7 reported.

All schools in the Alpine Independent School District were on lockdown and classes and athletics were canceled for the rest of the day.

The Brewster County Sheriff's Office and local police said the active shooter was at Alpine High School, located in the western part of the state.

According to KWES, the shooter died of a self-inflicted gunshot wound. She was a student at the school, and has only been identified as being female.

Police found a semi-automatic pistol next to her body with a large amount of ammunition.

The station said she shot a student in the "lower extremities." That student was taken to a local hospital and authorities have not said whether that student is male or female. That person was the only victim.

Witnesses said about five shots were fired at the high school.

Brewster County Sheriff Ronnie Dodson said to KWES that the shooter had only lived in Alpine for six months. He said that he knows the girl's grandparents, and they said today that their granddaughter was a straight-A student and didn't show signs of having any problems at school.