Police boosted patrols at Hawthorne High School on Friday to prevent further violence after a brawl involving dozens of students the day before, officials said.
No disturbances were reported Friday, said Police Capt. John Beerling.
One male student was arrested Thursday on suspicion of felony assault on an officer and taken to Eastlake Juvenile Hall, Beerling said. Twenty-five other students were cited and released, he added.
Police and school officials said the brawl was gang-related and may have been caused by tensions between Latino and Tongan students.
"There's information that it was gang-involved and also racially involved," Beerling said.
The fight broke out in the cafeteria during lunch, said Cheryl White, superintendent of the Centinela Valley Union High School District.