The plane involved is reportedly a Piper PA-32R that had two people onboard.
Coast Guard officials said the fixed-wing, single engine plane went down 23 miles east of Palm Beach.
Records show the plane left Palm Beach County Park Airport for the Bahamas around 1 p.m.
The Federal Aviation Administration is investigating the incident and the National Transportation Safety Board will determine the probable cause of the accident.
No other details were immediately released.
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