Five male students were arrested after a fight in the cafeteria at Grayslake Central High School on Tuesday, officials said.
What started as an argument escalated into several boys throwing punches, said Catherine Finger, superintendent of Grayslake High School District 127.
"A quick but noisy fight ensued," she said.
Staff members broke up the fight with help from a student and the whole thing was over in less than a minute, she said.
All five students were arrested by Grayslake police, who are investigating the situation along with school administration.
There were no significant injuries as a result of the fight.
Finger said she didn't know what caused the fight.
Police were not yet releasing the names of the students involved or the charges against them.
• Daily Herald staff writer Russell Lissau contributed to this report.