Eastpointe Police say just before 3 p.m. as school let out, a dispute between some students and outsiders turned into dozens of separate fights involving more than 100 people. No serious injuries were reported.
"When I saw the cop, I knew immediately I was safe, because it was a cop with a gun," said witness Jennifer Kruk. "You just see all these kids, running across the street screaming.
"It looked like more than 100 to be honest. I have never seen that many people in my life - especially for a fight, a high school fight."
Beginning outside the school those driving by say -- teens were running and punching in the middle of Gratiot Avenue.
"Running across Nine Mile and Gratiot, each way," said Dustin Courtney, a witness. "It was a big commotion."
The large-scale fights dispersed with arrests seen on a nearby BP gas station surveillance video. Warren and St. Clair Shores police worked to help control the crowd.
Eastpointe police say they made two arrests Thursday: A 26-year-old Harper Woods man for an outstanding warrant and a 17-year-old from Detroit, for possession of a knife.
The school is working on identifying others and officials say they will and will take appropriate action.
Cindy Madison from the superintendents office released a statement that said:
"Although the incident did not involve the District or its personnel, out of an abundance of caution, we have alerted law enforcement and asked for an increased presence around our buildings."
"It was kids from other schools," said Rayante Brown, an East Detroit school. "I was ok."
Eastpointe police say disorderly conduct tickets were also issued.
"My son's cousin's friend got jumped on by a bunch of boys and they broke his hand," said Antanetta Bradford.
With extra police patrolling the area Friday and the school dismissing students at different times to lead to a safer weekend, neighbors and students are relieved the chaos has ended.
One parent says she isn't taking any chances and is pulling her son out of this school.
"It seems like every day there is a fight," she said. "So he'll be going to a different school."