MIAMI (CBSMiami) – Police say seven people were killed in a helicopter crash which was headed to Fort Lauderdale from the Bahamas.

Bahamas police said the chopper had been carrying seven American citizens when it took off from Big Grand Cay.

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According to the Bahamas Press, West Virginia billionaire Chris Cline, who made his fortune in coal mining, is one of the people killed.

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Authorities report his daughter was another one of the victims.

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No word yet on what caused the crash.