The suspect faces felony charges of aggravated criminal sexual assault, manufacturing child pornography and dissemination of child pornography, Guglielmi said in a press release.

\"Additional arrests are expected as the investigation continues,\" Guglielmi said.

It is believed that up to six males were involved in the assault of the teen, a freshman at Chicago's Lake Tech High School who has received online harassment, according to ABC affiliate WLS.

BREAKING: 14-year-old arrested in Facebook Live sexual assault of 15-year-old girl, police say: https://t.co/TvWmhk4fTz pic.twitter.com/wADYASTJyg

— ABC 7 Chicago (@ABC7Chicago) April 2, 2017

The Facebook Live video of the incident -- which occurred March 19 -- was viewed by at least 40 people, but none of them called police, reported WLS.

The victim's mother contacted police after her daughter had been missing for a day.

Police Superintendent Eddie Johnson will provide more details at a news conference Sunday at 11 a.m.

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