Salacious snapshots apparently featuring the singer surfaced on the Internet on Friday.
Now officials in the legal department at Island Def Jam Music Group, Rihanna's record label, have moved swiftly to bury the scandal, sending cease-and-desist notices to Web sites that have posted the photos.
The letter, obtained by TMZ.com, does not confirm or deny that the woman in the photos is Rihanna, but it does calls for the immediate removal of "unauthorized photos purported to be... Rihanna."
It also calls the pictures a violation of "the artist's rights."
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