A school bus driver has been charged with contributing to the delinquency of a minor after she allegedly offered students cash to throw snowballs at a 13-year-old boy.

Thirty-four-year old Katina M. Mitchell of Sterling, Va., was arrested Wednesday by the Loudoun County Sheriff's Office.

According to police, Mitchell interjected herself into a verbal tussle between two students at River Bend Middle School in Sterling. Police say Mitchell got on the bus' PA system and offered varying amounts of money to students to either throw snowballs at the 13-year-old or stuff snow down his shirt.

Several students did throw snowballs at the boy, who was not seriously injured.

The school system says Mitchell has been suspended from duty and is on paid leave.