Crews are combing the site of a small plane crash in the Florida Everglades that killed as many as four people on board.

A Broward County Sheriff's Office spokeswoman says the single-engine plane went down about 6 p.m. Sunday west of Fort Lauderdale. According to a news release, Broward Sheriff Fire Rescue officials have confirmed one death.

The identities of the victims were not immediately released.

Federal Aviation Administration spokeswoman Arlene Salac says the plane left Gainesville and was headed to an executive airport in Fort Lauderdale. She says the pilot radioed that he was having problems with the Piper PA-32.

The plane is registered to Bull Gator Air Inc., in Sea Ranch Lakes. Nobody answered a call to the company early Monday.