LANCASTER, Calif. (KABC) — Disturbing video shows a day care worker pushing a little girl and pulling her hair in Lancaster.

The footage shows the woman on a park bench, grabbing the child's hair, then pushing her forward.

The Los Angeles County Sheriff's Department's Special Victims Unit is now investigating.

The woman who shot the video told Eyewitness News the incident happened Friday afternoon at Tierra Bonita Park.

Sheriff's officials said the mother of the 9-year-old child reported the incident to the sheriff's station in Lancaster on Sunday. Initial information from the investigation indicate that the woman seen striking the child in the video is the day care provider of the child. The day care facility is located in Palmdale, officials said.

Detectives are investigating the incident in conjunction with investigators with the California Department of Community Care and Licensing, and the Department of Children and Family Services.

If you have any information about this case, you're urged to contact the LASD's Special Victims Bureau's tip line at (877) 710-5273.

This story is courtesy of KABC.