CONCORD (KPIX 5) -- A teenage student at Concord's Mt. Diablo High School was arrested and will likely be expelled after assaulting a teacher while someone filmed the fight with their phone.
Video of the incident was posted to YouTube, showing a male student assaulting the male teacher in a locker room at the school.
The student struck the teacher, who sustained a minor injury, and declined medical attention.
Police said that the 15-year-old student was arrested at the school and booked into the Concord Police Jail on one count of felony battery against a school official. The student was released to his parents, and then suspended by the school.
Video of the fight can be seen below.
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