A skydiving plane with 15 people aboard went off the end of a runway in southern New Jersey on Wednesday evening, federal authorities said. A number of casualties have been reported.

All 15 people who were on a skydiving aircraft were being treated for injuries after the small plane crashed at Cross Keys Airport in Williamstown, New Jersey, on Wednesday, according to a hospital spokesperson.

The plane, a Cessna 208B, went off the end of a runway as it was taking off from a small airport in Gloucester County, according to the F.A.A. Victims were being treated at the scene, officials said.