A small plane crashed Sunday in Lake Worth, killing the two people on board, authorities said.

The twin-engine Cessna C335 crashed just before 11 a.m. at John Prince Park just south of Palm Beach State College. Records show that the plane was registered to a company in Wilmington, Delaware.

"As I drove off, to the right, I saw a whole family celebrating something, just maybe 600 feet away. So I was just, you know, grateful that it didn't happen right at that spot," Laura Golde, of Boynton Beach, said.

The Federal Aviation Administration said the aircraft departed from Key West and was headed to Palm Beach County Park Airport, about a mile from the crash site.

Witnesses said the plane was flying low before the crash.

One witness, Charles Gilbert, shot cellphone video after the crash that shows the wreckage of the plane on fire.

The Palm Beach County Sheriff's Office was investigating. The FAA and the National Transportation Safety Board also plan to investigate the crash.

"I felt a lot of pain for the families, you know?" Golde said. "You don't know who they are, but you just feel it in your heart."

Deputies on Monday identified the victims as Philip Castronova, 70, and Mandy Castronova, 39, both of Lake Worth.

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