Missouri girl in critical condition after video shows teen slamming her head in 'deranged display of violence'

A fight involving numerous people left a Missouri girl hospitalized in critical condition after what officials called a “deranged display of violence."

St. Louis County police detectives are investigating the brawl on March 8, which was captured on video and posted to social media.

The horrific video shows several people fighting in the middle of the street near the intersection of Norgate and Claudine drives. One person is seen repeatedly punching the victim and slamming her head to the ground.

A 15-year-old girl was arrested on assault charges a day after the fight, authorities said.

St. Louis County Police said the fight happened around 2:32 p.m. March 8 near Hazelwood East High School. Officers found the victim "suffering a severe head injury,” authorities said March 11 on Facebook.

The victim was taken to the hospital, "where she remains in critical condition," police said. Her identity has not been released. A spokesperson for the family could not be reached for comment.

"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 said in a statement on March 9. "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."

St. Louis County Prosecuting Attorney Wesley Bell said the fight was "sickening" and the video was "difficult to watch."

Missouri Attorney General Andrew Bailey called the actions in the video a "deranged display of violence that must be punished to the full extent of the law."

"This vicious attack highlights the greater issues we’re facing in the juvenile justice system across the state. I will continue to fight for more resources, increased juvenile certifications, and a tougher on crime approach than our current levels of enforcement," he said on X.

"This culture of violence has no place in Missouri or anywhere," Bailey said. "Children deserve to attend schools free of crime and violence."

Police said the fight remains under investigation.

This article was originally published on NBCNews.com