A school bus and a truck have collided on a New Jersey interstate, leaving an unknown number of people injured.
Pictures from the scene show the wreck of the yellow American school bus on its side, lying across crash barriers on the central reservation.
The front of the bus is mangled and the vehicle is missing its wheels.
A large red dumper truck, also with a mangled front is stopped at the side of the road.
There are thought to have been around 40-46 people on board.
Reports from ABC, citing police officials, indicate two people are dead. Other reports suggest it is one student and one adult chaperone.
Police have said they are investigating a "serious" accident.
According to US media, 10 people have been taken to the Hackettstown Medical Center, 10 have been taken to St Clare's Hospital and others have been taken to the Morristown Medical Center.
Mount Olive Mayor Rob Greenbaum told The Record: "There's an incredible emergency response from throughout Morris County and by state police. It's a horrific scene."
A Paramus School District statement said: "This morning, East Brook Middle School students on their way to Waterloo Village were involved in a serious bus accident on Route 80 in Mount Olive, NJ.
"Morristown Medical Center, St. Joseph's Hospital, and Hackettstown Medical Center are treating the injured passengers.
"Family members are asked to visit East Brook Middle School to await more information from school officials. Students will be dismissed from school."
Police search dogs patrolled the area at around 12.30pm local time.
The bus is marked as a Paramus School District vehicle, and it is understood that a fifth-grade class trip from the district was scheduled for Waterloo Village, an historic site five miles from the crash scene.
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East Brook Middle School is home to fifth to eighth grade pupils. Mount Olive township confirmed to a local paper that students from their district were not involved.