Prince William County officials say a social services employee has been fired and two others disciplined for mishandling the case of a 13-year-old girl who authorities say was abused and killed by her adoptive mother.

After Alexis "Lexie" Agyepong-Glover was found slain in a creek in January, many people said they had reported signs of abuse by her mother, Alfreedia Gregg-Glover, but she was not removed from the home.

County officials announced Wednesday that an internal review found that several employees did not follow proper procedures in response to the abuse and neglect reports.

A Virginia Department of Social Services official says an inquiry into the case is expected to be released to county officials within the next three weeks.