Update: Article contains information on three injuries including two minors.

Three people were injured after a school bus they were on overturned on Route 24 Monday afternoon. The accident happened on the bridge over River Road in Summit. Emergency responders from Millburn, Summit and the Chathams, along with fire and police personnel responded to the scene. 

It was reported earlier that there were no passengers on the school bus. However, according to Summit Fire Department Battalion Chief Rick Locke there were three people injured in the accident, including two minors. He could not discuss the injuries which were reported as minor, but said one of the injuries seemed moderate.

Traffic was backed up in the eastbound lane west of the Summit, Chatham, Millburn exit for a couple of miles around 4 p.m. today.

A total of three ambulances responded to the incident, with two from the Summit Volunteer First Aid Squad and one from Chatham Emergency Squad, according to John Staunton of the Summit first aid squad.

Summit and Millburn police departments could not provide further information on the incident. 

According to Locke the school bus appeared to have hit a guard rail and spun around at least once where it came to stop in the center lane of Route 24.

Two of the injured were taken to Morristown Medical Center and the other to Overlook Hospital.

The school bus was the only vehicle involved in the accident. Locke did say the bus was coming from a school, but did not know which one.

Patch will follow this story. Check back for a full report on this incident.