Olivia Nutter, the daughter of Philadelphia Mayor Michael Nutter, was assaulted by Ciarra Ryan at a high school track meet last week.
NBC News reports Olivia Nutter was walking towards a group of girls at the meet in East Mount Airy in Northwest Philadelphia, when one of them told her to move, according to police.
She was assaulted moments later. Ciarra Ryan was arrested and charged with simple assault and recklessly endangering another person. No motive has been established for the attack.