Police say six teenagers were arrested after a fight and assault near Ygnacio Valley High School in Concord

CONCORD, Calif. (KGO) — Six teenagers, some of whom attend Ygnacio Valley High School in Concord, were arrested Wednesday afternoon after an apparent attack just off campus.

Parents said they were concerned and had not heard anything about it when we spoke to them on Thursday.

Dozens of students appeared on video around 2:30 p.m. Wednesday apparently fighting or attacking the bench right next to Ygnacio Valley High School.

“I saw people running and then I went to follow them and then I saw a child being attacked!”

This comes from a student who witnessed the event but chose to protect her identity.

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We received a video from an anonymous member of the school community.

The video shows someone wearing a ski mask throwing a punch and then joining other masked people in an attack.

Officers said they broke up what they called a fight between several teenagers. Security and property management told us that it was a “real ambush of a male and female student by several people.”

While police did not find a knife, witness video shows a knife simply lying on the ground near the crowd.

“I think for any parent hearing this, it's very concerning, especially if you think in this area that it's some kind of higher level,” said Michelle Angles, whose son attends Ygnacio Valley High School goes.

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“It's disturbing that something like this would happen here,” said Keith Shimizu, who is also a parent of a student at the school.

We asked police if this attack had anything to do with a gang. They tell us the motivation here is part of their ongoing investigation.

“They say it was about a girl and he got mad because the other guy was going out with the girl so he called his friends – I'm pretty sure. They had ski masks on – I don't know that's exactly what it is. “I guess that's what the guys here do, when they fight they just wear ski masks,” said the student who witnessed the incident.

According to police, six teenagers were arrested – four of the six were released to their parents. The other two were taken to the juvenile detention center and face charges of assault.

The district has not yet commented on the incident.

Concord police released this statement:

At approximately 2:30 p.m. yesterday, officers responded to a reported fight in the area of ​​Oak Grove Road and Treat Blvd. That's near Ygnacio Valley High School, but the fight didn't take place on campus. Officers broke up a fight between several teenagers. There was also a large crowd of teenage onlookers dispersing. In the end, officers arrested six teenagers. Two were arrested for assault in connection with the fight and taken to the juvenile detention center. Four were arrested for obstructing officers as they attempted to control the crime scene and conduct their investigations. These four were all returned to their parents. Two attack victims have been located. No serious injuries were reported. There was a witness who reported seeing a knife, but no knife was found and no crime involving a knife was reported. Some of the youth involved attend Ygnacio Valley High. Our school resource officers will work with school staff to determine the cause of the fight and any necessary actions to calm the situation and prevent future fights. There will be an increased officer presence at the school and the surrounding area over the next few days. Anyone with information about this fight is asked to contact Concord police at 925-671-3220.