Federal Aviation Administration spokeswoman Arlene Salac said two general aviation planes hit each other over Hammonton Municipal Airport shortly after 1 p.m. Saturday. The aircraft were in space designated for aerobatic maneuvers.
Salac said one pilot was killed, and the other ejected from the plane. Their names were not released.
Authorities say the injured pilot ended up about a mile from the airport and walked to it. He was taken to a hospital for treatment of undisclosed injuries.
There were no passengers in the planes.
FAA investigators and Hammonton police were still at the scene Saturday evening. It wasn't immediately clear what caused the crash.