WATCH: 13-Year-Old Girl Assaults Teen Holding Toddler

A 13-year-old girl was arrested Sunday night on felony charges after a video was posted online last week showing her assaulting a rival teen who was holding her young nephew.

The attack happened at a school in Rowlett, Texas, a suburb of Dallas, on June 19, according to Fox 4 News. The girl, who has not been identified because of her age, was charged with assault and risk of injury to a child.

The video, posted to LiveLeak on June 23, shows the 13-year-old girl confronting a 14-year-old schoolmate. The 14-year-old girl was sitting with another girl at a picnic table, holding her 3-year-old nephew, who she was babysitting. The 13-year-old attacker yells at the other girl to “get up,” but the girl remains seated.

The male recording the video can be heard saying, “take the baby, she’s not getting up.”

After a few seconds, the 13-year-old grabs the other girl by the hair, and pulls her to the ground, causing the young boy to fall from her arms.

The 13-year-old Texas girl grabbed the 14-year-old by the hair, throwing her to the ground and causing the 3-year-old boy to fall from her arms. (LiveLeak)

The 13-year-old Texas girl grabbed the 14-year-old by the hair, throwing her to the ground and causing the 3-year-old boy to fall from her arms. (LiveLeak)

The boy can be heard screaming as his aunt is dragged into a grassy area and struck repeatedly by the 13-year-old. A teen boy dances over the two girls as the 13-year-old hits the other girl.

According to Fox 4 News, the two girls went to the same school, but knew each other only in passing. They had a “minor altercation” during the school year, police told the news station.

“It’s two teenage girls who have bad feelings [toward] each other,” Rowlett Police Detective Cruz Hernandez told the Dallas Morning News. “One took it way too far and definitely violated the law and jeopardized the safety of the 3-year-old.”

Police said they believe the attack was premeditated.

“I find it concerning that young people today would videotape an attack of someone rather than taking that phone and calling 911,” Hernandez said.

The toddler and 14-year-old girl were not seriously injured.

No one else seen in the video was charged.