The photos, showing the singer naked on vacation in Bora Bora, began spreading online Wednesday.
Justin Bieber's team is cracking down on media outlets that have published nude photos of him.
According to a cease-and-desist letter sent to New York's Daily News, which originally published the nude photos Wednesday showing the pop star on vacation in Bora Bora, Bieber's legal representatives are demanding the immediate removal of the photos from its website.
The letter, obtained by The Hollywood Reporter, was sent shortly after the photos were published Wednesday afternoon, demanding compliance within 12 hours of receipt. As of publication, the photos are still live on the Daily News website.