Bottles and other items were thrown at police officers trying to break up fights that broke out Tuesday at Fremont High School in South Los Angeles, where eight students were detained.
Pepper spray was used by officers who tried to restore order on the campus in the 7600 block of San Pedro Street. One student suffered a minor injury and was taken to a hospital after the fights broke out around 11:30 a.m., said Los Angeles School Police Department Sgt. Rudy Perez.
It was unclear what sparked the unrest.
When officers tried to break up a fight between two girls, bottles and debris were thrown at them and numerous other skirmishes broke out, police said. A bottle -- Perez didn't know if it was glass or plastic -- struck an officer in the head, leading to a call for help.
More than 30 officers, some of them from the Los Angeles Police Department, ultimately responded to the campus, Perez said.
Pepper spray was used in the course of detaining one of the detained students, all of whom were turned over to their parents or guardians, Perez said.
The injured officer was treated at the scene, as were a number of other students, Perez said.
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None of those detained were arrested and discipline would be addressed by school administration, according to Perez, who said there would be a highly visible police presence on the campus on Wednesday.