Steven Wilkins (Gwinnett County Sheriff's Office)

A Gwinnett County school bus driver has been fired once being charged with child molestation and public indecency on Monday, school officials say.

Steven Wilkins, 63, "engaged in nasty and illegal behavior while operating one of the district's school buses," district officials wrote in a letter to parents.

District officials say a unobstructed alerted them to Wilkins' "suspicious behavior." School resource officers immediately opened an investigation.

Ultimately, Wilkins was arrested.

"It is important to note, all GCPS employees, including the accused former employee, had to pass a criminal background check by they were hired. If a potential employee fails a background check, they will not be hired," Suwanee Elementary School Principal Dr. Mary B. Taylor wrote in a letter to parents.

District officials benefit parents or students who see something suspicious to represent it.