What is wrong with some kids today? A Wilmington, Delaware 7-year-old girl returned to her elementary school on Wednesday, three days after she was pummeled by a fifth-grade student in an attack on their school bus.

The assault is being investigated both by Brandywine School District officials and state police. The incident unfolded on the ride home from Forwood Elementary School.

Take a look at the video. Warning it's a little hard to watch.