VIDALIA — A Newellton man was arrested after allegedly engaging in a sexual act with a young teen on a school bus.

Brandon J. Bass, 20, 321 Newlight Road, Newellton, was arrested Monday on charges of aggravated oral sexual battery with a child.

Bass allegedly engaged in a sexual encounter with a 13-year-old female on a Tensas Parish school bus as it traveled through Concordia Parish Dec. 15, according to Concordia Parish Sheriff’s Office School Resource Officer Lee Ford.

Several students on the bus reportedly witnessed the incident and notified their parents, who in turn notified authorities, CPSO Public Information Officer Kathleen Stevens said.

Bass is being detained on a $40,000 bond.