ALPINE, Texas » A female student died of an apparent self-inflicted gunshot wound today after shooting and injuring another female student inside a high school in West Texas, according to the local sheriff.

Brewster County Sheriff Ronny Dodson told radio station KVLF that the injured student ran outside seeking help and was taken to a hospital with injuries that weren’t considered life threatening.

“The shooter appears to have shot herself,” the sheriff said. A gun was found near the suspected shooter, he said.

The incident began shortly before 9 a.m. at Alpine High School in Alpine, a town of 5,900 about 220 miles southeast of El Paso.

Authorities did not immediately release a possible motive for the gunfire.

Dodson said a federal law enforcement officer who was responding to the incident was shot in the leg when another officer’s gun accidentally discharged.

Dodson didn’t immediately return a message left with his office by The Associated Press seeking further details about the investigation. The school district declined comment, saying it would release a statement later. Alpine police referred to its Facebook page for updates, but none had been posted as of this afternoon.

Texas Attorney General Ken Paxton said he’s monitoring developments in the Alpine shooting and promised to provide support for law enforcement agencies investigating the matter.

The shooting prompted a lockdown at Alpine’s three public schools.

Dodson said the shooting at the high school was part of a chaotic series of events that included a bomb threat called in at nearby Sul Ross State University, which required law enforcement personnel to rush there from the high school.

“That’s ridiculous for someone to call in something like this when we’ve got this situation going on,” Dodson said. “This community does not expect this, we don’t want this, and we can’t explain it yet.”