A shooter is in police custody and another suspect has been detained following a shooting that left multiple people dead and others injured at Santa Fe High School in Texas.

Texas Governor Greg Abbott says at least 10 people are dead and 10 people are injured, most of the students, after shots were fired Friday morning at SFHS, located about 30 miles south of Houston.

Dimitrios Pagourtzis, 17, who is a student at the school, has been arrested and charged with Capital Murder in the shooting. He is being held without bond.

A person of interest, who has only been identified as a student, has also been detained.

A Santa Fe ISD police officer, who just retired from the Houston Police Department, has also been critically injured in the shooting.

Possible explosive devices have also been located at the school and off campus. Law enforcement is working to render them safe.

The FBI, ATF, Texas Department of Public Safety, and local law enforcement including Santa Fe PD, Galveston County Sheriff’s department and Harris County Sheriff’s Office are all on the scene, after reports of shots fired came in just before 8 a.m. Friday.

Ambulances along with LifeFlight have transported victims to local hospitals.

The University of Texas Medical Branch reports that they are treating three patients, two adults, and one under 18 years old.

Students say they witnessed the shooter open fire inside an art class. Multiple students were struck by in that classroom.