A 20-year-old Newellton man has been booked with aggravated oral sexual battery of a child, said Concordia Parish sheriff's deputies.

Deputies allege that Brandon Bass was engaging in a sexual encounter with a 13-year-old female on a Tensas Parish school bus as it was traveling through Concordia Parish on December 15th.

The incident was reportedly observed by several other students on the bus who told their parents, and authorities were notified.

Bond was been set at $40,000 for Bass.