The nation is devastated once again as another shooter took aim at a high school in Santa Fe, Texas. In the early hours of May 18, students attending Santa Fe High School were alerted about an active shooter situation. Witnesses have confirmed to ABC news that the shooting occurred on campus during art class between 7:30 and 7:45 A.M.

The school was immediately put on lockdown. One witness told CNN that he could hear shots being fired as fire alarms were being set off. The witness said teachers had trouble containing the chaos because many students were running and panicked. Local law enforcement officers from both the Galveston County Sheriff’s Office and the Santa Fe Police Department responded to the scene, and they were quickly joined by agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives.

Authorities conducted a massive evacuation and transported all students to a nearby local gym. Officials are reporting multiple gunshot wounds, but there has not been an official statement about the number of victims yet.

Cris Richardson, the school’s Assistant Principal, told news reporters that one suspect has been arrested in connection with the shooting. The school district soon confirmed that the incident has been contained. An unknown number of wounded patients are headed to the University of Texas Medical Branch for treatment. It is still unknown how severe the student’s injuries are.

Local news reports indicate the Santa Fe High School was put on lockdown in February of this year after similar reports of shots fired. The February incident was investigated, but police did not find any evidence of a crime being committed. More information is expected to be released in the coming hours.