It happened just before 11 a.m. in the eastbound lanes of Route 24 in Hanover.
The van crashed through a guardrail and overturned down an embankment, falling at least 30 feet down the hill off the side of the roadway.
There were 14 people and the driver inside, and many had to be extricated. It is unclear if they were wearing seat belts.
Information about the fatality has not been released, and other victims were taken to area hospitals.
ALSO READ: 12 hurt, including children, when fire tears through Bronx apartment building
1 dozen hurt when fire tears through NYC apartment building
Five people were transported by ambulance, but nine who required less immediate medical attention were triaged and taken to Morristown medical Center in a bus.
There is still now word on the extent of the injuries suffered by the passengers who remain at the hospital. It is also unclear if the person who died was the driver or one of the passengers.
The cause of the crash is under investigation, and it is unclear where the van was headed.
ALSO SEE: Jackie the bald eagle lays egg in Southern California mountains
Bald eagle lays egg in SoCal mountains
----------
* Get Eyewitness News Delivered
* More New Jersey news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a News Tip