CHICAGO (CBS CHICAGO) — A missing 15-year-old girl who had been seen in a “disgusting” Facebook Live video has been found, and has been reunited with her mother.

Chicago Police Department spokesman Anthony Guglielmi said the girl was found by Ogden District police officers, and was at Area Central headquarters with her mother. Detectives were conducting interviews, Guglielmi added.

The teenager had last been seen in person around 3 p.m. Sunday, but her mother feared she might be in danger after seeing her daughter in a “disgusting” Facebook Live video.

The girl’s mother, Stacey Elkins, said the video showed her daughter in various stages of undress with several young men. She said her daughter appeared to be scared, and the men were acting abusive toward the teen.

Police said the girl was sexually assaulted in the video, which has since been removed by Facebook.

“For you to do something like that and then to post it up on Facebook like it’s a joke, it’s just terrible. I know they’ll get their day coming,” Elkins said Tuesday morning before her daughter was found.

Elkins shared her concerns with Chicago Police Supt. Eddie Johnson during a chance encounter outside the Ogden District police station on Monday as she was going in to file a missing person’s report.

Johnson escorted her inside to make sure it was handled immediately.

“I’m a father with two daughters, and I could see the pain in her face, and I want her to know that CPD is here to help you,” he told CBS 2’s Mai Martinez.

Johnson said he’s also very disturbed that at one point at least 36 people were watching the video live, but no one alerted police.

“There were so many people that saw it and didn’t pick up the phone and dial 9-1-1. That’s just not right,” he said.

CBS 2 no longer is identifying the girl, because police have said she is the victim of a sexual assault, and because she has been found.