ARLINGTON, Texas — A student was killed in a shooting outside a Dallas-area high school Monday morning and police arrested a minor suspected of opening fire, authorities said.

The shooting began on the Lamar High School campus in suburban Arlington around 6:55 a.m., before many students arrived for the first day back to school after spring break, according to police and school district officials.

One student was injured by gunshots, another was injured by «debris from the shooting» and both received medical attention, Arlington Independent School District spokeswoman Anita Foster said.

NBC Dallas-Fort Worth reported that one student died and the other appears to have minor injuries.

The boy who was shot, an injured girl and the male suspect are all under 17, police said.

«We believe we have the shooter in custody and the gun recovered,» Arlington police spokesman Jesse Minton told reporters.

In the early stages of the investigation, Monday’s attack did not appear to be an attempted mass shooting, authorities said.

“We don’t believe this was something where the (suspect) student was going to try to shoot multiple people at the school,” Minton said. «We think it may have been a target.»


Police investigate a shooting outside Lamar High School in Arlington, Texas, on Monday.NBC 5

Arlington police said the suspect never entered the school and was arrested shortly after officers arrived on the scene. They said the scene was safe in a tweet at 7:21 a.m.

The suspect will not be publicly identified because of his age, police spokesman Tim Ciesco said.

NBC News does not typically name minors charged with a crime, even those charged as adults.

Foster said arriving school buses and other students were diverted off campus before classes started. Officials urged parents and others to stay off campus while police investigate.

Just after 10:40 a.m. local time, police tweeted that the search of the school had been completed and officials would begin releasing students for the day.