OAKLAND (KCBS) — Two school security officers have been suspended after the Oakland Unified School District’s new superintendent and police chief discovered security-camera footage showing an unprovoked attack on a high school student that was then covered up by former officials.

The Chronicle reports that, in a video they obtained, a male student at Fremont High school is leaning against a doorway when he’s confronted by two security guards. One shoves him from the back and then puts him in a chokehold before dragging him with his arm twisted.

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LINK TO SECURITY VIDEO (via OUSD)

The student was then pushed against the wall before he took a swing. According to district officials, one of the officers punched him multiple times.

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At the time, district officials looked into the incident, but the written report does not reflect what the video shows.

After the incident, the student was suspended for five days. The security officers, who have not been identified, received no disciplinary action.

The video has been forwarded to Oakland police and the Alameda County district attorney’s office for a possible criminal investigation. Officials also reopened the district investigation, with the goal of determining who knew about the incident, who saw the video and who failed to act.

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District officials contacted the student’s family Friday to apologize.