Cindy Crawford has become the victim of an extortion plot involving a photo of her daughter bound and gagged.

The supermodel and husband Rande Gerber's former nanny is alleged to have taken a photo of then-seven-year-old Kaia tied to a chair and passed it on to suspect Edis Kayalar.

Court documents then claim Kayalar attempted to extort $100,000 from the couple and repeatedly threatened to sell or release the photograph to the media if they failed to pay.

In a statement, Cindy's spokeswoman Annett Wolf said: "Rande Gerber and Cindy Crawford intend to pursue any and all available legal action against anyone who aids the perpetrator in the distribution or sale of the photograph of their daughter."

According to the documents, Kaia - who is now eight - told her parents the photo, which they had been unaware of, was taken during a "cops and robbers" game with the nanny.

Kayalar has now been deported to his native Germany and if convicted of extortion, he could face up to two years in prison.

Cindy and Rande married in 1998 and they also have a 10-year-old son Presley.