A former student of a private school in Torrance, California, is in custody after allegedly stabbing three staff members, attempting to stab a fourth person, and later making a bomb threat while under arrest, police said.

The former Switzer Learning Center student left the three staff members injured and triggered a major response from the Los Angeles County Sheriff’s Department Bomb Squad Monday.

The Switzer Learning Center is a nonpublic special education school that, according to its website, supports students from Kindergarten through 12th grade.

According to a statement posted on the Torrance Police Department’s Instagram page, officers responded around 8:15 a.m. local time to reports of a stabbing at the school on Amapola Court.

The Switzer Learning Center is a nonpublic special education school that, according to its website, supports students from kindergarten through 12th grade. (Google Maps)

Nearby streets were temporarily closed, and the Switzer Learning Center was placed on lockdown as emergency crews secured the scene.

Authorities also confirmed in the official Instagram update that no explosive devices had been found, though the investigation into the bomb threat was ongoing.

Police have also not released the suspect’s name or disclosed a possible motive and said the investigation continues.

Fox News Digital reached out to the Torrance Police Department for further comment.