A cellphone video of the arrest of a 15-year-old girl in Arlington that appears to show a police officer slamming her to the ground is circulating on the Internet.
Arlington police said they will fully investigate the video, which was taken after organizers shut down a high school party early because of fights on Wednesday night.
Police said groups of young people continued fighting as hundreds of teenagers spilled into the parking lot of a banquet hall on North Collins Street, across the street from Cowboys Stadium.
The cellphone video seems to show an officer throwing a girl down on the ground. The video does not show what happened in the seconds before.
The police department said it would investigate the incident, which is routine whenever officers use force.
"We appreciate the video that came forward," Sgt. Christopher Cook said. "That actually assists us in our investigation."
Anyone else with additional cellphone footage is asked to contact the police department.
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"We'd definitely be interested in looking at that video to assist us in furthering our investigation," Cook said.
The teenager, who was arrested on suspicion of fighting in public, was not injured. She was later released to her parents.
The girl has not filed a complaint.
Four other people were arrested.
The manager of the banquet hall said the teenagers were out of control. He said it was his first -- and his last -- high school event.
NBC 5's Scott Gordon contributed to this report.
