A 16-year-old girl has pleaded guilty to killing seven-year-old Katie Rough.
The girl, who cannot be named for legal reasons, pleaded guilty to manslaughter by diminished responsibility.
Katie was found with severe lacerations to her neck and chest on a playing field in Woodthorpe, York, on 9 January. She died later in hospital.
The girl entered her plea via video link at Leeds Crown Court.