UPDATE: 5 p.m. EDT — The shooter who opened fire in Alpine High School in Texas Thursday was a 14-year-old freshman, according to KWES. Brewster County Sheriff Ronny Dodson told reporters police received a call about the shooting, which occurred in a bathroom, at about 10:30 a.m. EDT. The girl shot a female peer before killing herself.

The Sul Ross State University bomb threat was likely unrelated, Dodson told the Associated Press.

Texas Attorney General Ken Paxton wrote in a statement that he was monitoring the situation. "I have directed my office to offer any measure of support needed to assist the law enforcement officials currently working this case," he said. "I wish to extend prayers and sympathy to any victims’ families and their loved ones who have been affected by this senseless act of violence."

UPDATE: 12:27 p.m. EDT — Details were finally coming out about a shooting at Alpine High School in southwest Texas Thursday morning. Before 10 a.m. local time, a female student shot a girl and then killed herself in a school bathroom, according to WABC. An officer responding to the incident was mistakenly wounded by a marshal on scene, CNN reported.

Sul Ross State University was still under lockdown for a bomb threat.

UPDATE: 12:07 p.m. EDT — Big Bend Regional Medical Center in Alpine, Texas, was treating three victims Thursday after a shooting at a local high school, the Associated Press reported. A spokeswoman told the AP she couldn't give further details.

Evacuated Alpine High School students were at a Jehovah's Witness church near by, according to the Alpine Avalanche. Sul Ross State University was on lockdown, as well.

UPDATE: 11:56 a.m. EDT — The suspect in Thursday's shooting at Alpine High School that sent at least one person to the hospital in southwest Texas was female, KLST reported. Statistically, the people behind mass shootings are overwhelmingly male

Nearby, Sul Ross State University remained on lockdown.

UPDATE: 11:39 a.m. EDT — Sul Ross State University's Alpine campus was on lockdown Thursday after a shooting at Alpine High School in Texas in which at least one person died, KXAS reported.

UPDATE: 11:31 a.m. EDT — Police were searching for suspects in southwest Texas on Thursday after a reported shooting at Alpine High School, a Brewster County Sheriff's Office spokeswoman told mySA.com. But other reports said at least one shooter was dead.

Schools nearby remained on lockdown.

UPDATE: 11:25 a.m. EDT — The suspect in an active shooter situation at Alpine High School in southwest Texas was dead Thursday, ABC News reported. At least one person had been transported to a nearby hospital, according to the New York Daily News.

UPDATE: 11:17 a.m. EDT — One person has reportedly died in an "active shooter situation" at Alpine High School in Texas, Austin-based news outlet KVUE reported Thursday. The local police department confirmed to CBS7 that all institutions in the area were on lockdown as the incident unfolded.

Original story:

Schools in the Alpine Independent School District in Brewster County, Texas, were on lockdown Thursday amid reports of an active shooter at Alpine High School. At least one person had been wounded, according to CNN, but the Houston Chronicle reported no confirmed injuries.

U.S. Rep Pete Gallego, D-Alpine, urged the community to pray for the children. "As we all wait for more information, please keep Alpine - Alpine's kids - in your prayers this morning," he wrote on Twitter. Alpine High School has roughly 1,000 students, according to the school's website.

Rumors and messages of concern flooded social media:

This is a breaking news story. Check back for updates.