LIBERTY COUNTY, Texas -

Grainy cellphone video supposedly depicting two teenage girls fighting is now at the center of an investigation by Child Protective Services.

One of the girls in the video is in CPS custody and her latest caregiver, according to the teen's biological mother, organized the fight.

"The lady she was placed with sitting their 'egging' her on telling her to get up and whip the other kids," Martha Burge, the teen's mother said.

A family friend of the caretaker maintained the fight was purposely conducted under the caretaker's supervision to once and for all end hostilities between the girls.

"I think she was just trying to make it so the girls wouldn't have any more problems after that night," Chris Parks said.

The 16-year-old got a black eye, but was not seriously injured according to her mother. 

Burge said she sent video of the fight to her CPS caseworker but the only thing that happened was a call placed to the teen by the caseworker.

"Our staff is still following up we are concerned, we are genuinely concerned about what happened," Gwen Carter, a CPS spokeswoman said.

Carter said her agency has been responsive to the seriousness of the situation and the investigation is continuing.

"It could result in the child being moved out of that situation," Carter said.