SANTA FE, Texas (KTRK) --
At least one gunman opened fire at a Santa Fe High School killing 10 people, most of them students, Governor Greg Abbott confirmed. Now possible explosive devices have been located both at the school, and at a site off campus. Anyone who sees anything suspicious is urged to call 911.Law enforcement sources tell ABC13 that 17-year-old Dimitrios Pagourtzis was the gunman in the deadly shooting.
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Santa Fe High School went on lockdown around 8 a.m.
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Governor Abbott also confirmed during a press conference Friday afternoon that 10 people were wounded in the shooting.
Assistant Principal Cris Richardson said earlier in the day that a suspect had been arrested.
"We hope the worst is over, and I really can't say any more about that because it would be pure speculation," Richardson told reporters at the scene.
Witnesses say the shooting took place in an art class on campus between 7:30 and 7:45 a.m. Students were evacuated from the building, and backpacks were searched before they were transported to Alamo Gym at 13306 Highway 6 to be reunited with their parents.
"We thought it was a fire drill at first but really, the teacher said, 'Start running,'" student Leila Butler said.
MORE: Student's first person witness account
President Donald Trump offered his condolences amid the tragedy.
Other nearby school districts put protective measures in place as well.
Santa Fe is roughly 36 miles outside of Houston. According to the Texas Education Agency, the high school enrollment is about 1,400 students.
