State police are investigating after a school bus with at least 42 children and adults on board flipped over Saturday on the New Jersey turnpike, WNBC reported.

>> Read more trending news

There were no serious injuries or fatalities, WNBC reported. Officials said 36 people were taken to hospitals, the Star-Ledger reported.

The school was carrying children and parents back from the Mayor's Family Reunion Picnic, the Star-Ledger reported. Police said a car might have hit a guardrail causing the bus to lose control, WNBC reported.

This is a developing story. Check back for updates.