A teenager reportedly remains hospitalized and another is being held in family court after a brutal beating near a St. Louis-area school was caught on camera. 

The fight, which took place last Friday near Hazelwood East High School, was widely circulated on social media shows the two teens start fighting for an unknown reason.

The two teens end up on the ground. One of the girls repeatedly punches the other in the face before slamming her head into the pavement several times.

The girl appeared to begin to have a seizure while laying on the ground.

Police said Sunday they had confirmed the horrific video was authentic.

The St. Louis County Police Department told KTVI-TV that it happened around 2:30 p.m. Friday just north of the school campus.

Police found the girl suffering from a severe head injury. EMS took her to a hospital and she was listed in critical condition.

Police arrested a 15-year-old girl on Saturday to face assault charges.

The school district released a statement in response to the violence saying, "It is a tragedy anytime children are hurt. Bullying and fighting in the community is an issue for which we all need to take ownership and work towards a resolution for the sake of our children."

"The Hazelwood School District offers our sincerest condolences to everyone involved, and will offer additional emotional support from our support and crisis team to those in need. We look forward to continuing to partner with our community for the sake of our children. Please be kind and respectful of the families involved during this difficult time and pledge to help work toward the betterment of our entire community."

The name and age of the victim was unknown. Authorities did not release the name of the suspect because of her age.

Urban League Vice President James Clark was disturbed by the footage.

"That's a glimpse into the mentality and the culture of our young people today," Clark told KSDK-TV.