A 14-year-old boy has turned himself in weeks after a video reportedly showed him and others attacking an 11-year-old girl in New York City.

WPIX reported that a group of teens was filmed on December 18 throwing a backpack at the victim in addition to dousing her with water and repeatedly punching her in the back of the head. Though the girl didn’t report the December 18 incident to her parents, the footage made its way onto Snapchat—and to police, according to the news station.

The mother of the tween girl told the New York Daily News that the incident was a “set up” as the boys were already recording as her daughter walked home with a sixth-grade classmate.

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“He was inviting her to his private parts,” she said. “He spat in the water bottle and threw it in her face…It was because she didn’t want to give them sexual favors.”

The Daily News claimed to have reviewed a longer version of the video, reporting that the 11-year-old told the group of boys, “I don’t want to do anything. I don’t know you guys,” to which one of them responded, “You can get to know us by putting my d**k in your mouth.”

The mother explained that she and her two children recently moved to Brooklyn from Virginia. Since the incident, she says she plans to move back—and already sent her bullied daughter there to stay with family.

The 14-year-old who turned himself in was charged with reckless endangerment and assault. The Daily News reported that he was the teen seen in the video spraying the victim with water.

Reports indicated that the other boys remain at large.

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[Featured Image: New York Police Department]