Police said two children from Indian Mills Elementary School were exiting the school bus around 8:30 a.m. Monday when they noticed the driver watching a pornographic video on his cell phone.
The bus was reportedly parked at the time.
The children told their parents, who alerted state troopers.
After an investigation, police arrested 64-year-old Franck Lafortune, of Burlington Township. Lafortune was charged with obscenity to minors under the age of 18 and released pending a court appearance.