AKRON -- Classes have been dismissed for the remainder of Friday at Kenmore High School after a fight involving approximately 30 people broke out Friday morning.
Police initially responded shortly after 9 a.m. and used pepper spray to calm the fight, which was sparked on the second floor.
A spokesperson for Akron Public Schools says teachers learned about a Facebook post predicting the fight.
Mark Willamson says an 18-year-old student, possibly from Akron's Butchel High School, entered the school.
Things escalated quickly after that.
Soon, more than two dozen students were involved.
At least 12 students were arrested and taken out of the school in handcuffs.
The entire situation lasted only 15 minutes, but scary moments when parents -- thinking of Pittsburgh and other situations -- heard the news.
There were no injuries, but emergency responders arrived by ambulance to treat an asthmatic student who was exposed to the pepper spray.
Police say no weapons were involved in the fight.
How or why this fight started isn't clear.
A lockdown has remained in place while crews clean up the second-floor area exposed to the pepper spray.