USA – A shooting at Evergreen High School in Colorado on Wednesday left the student shooter dead from self-inflicted gunshot wound, and 2 others critically injured according to Jefferson County Sheriff’s Office.

The injured students were transported to St. Anthony Hospital, where one remains in critical condition.

“I don’t know if our suspect is even old enough to drive,” said Jefferson County Sheriff’s Office spokesperson Jacki Kelley.

The sheriff’s office said the suspect was armed with a revolver.

In a statement, Colorado Gov. Jared Polis said he was devastated by the shooting.

“My heart goes out to the victims and their families as they grapple with this senseless act of violence,” Polis said.

After the shooting, hundreds of police officers were on the scene searching each room on campus, according to law enforcement.