Justin Bieber's lawyers have swooped on websites posting naked photos of the pop superstar on holiday in Bora Bora, threatening legal action if the candid shots are not taken down.

The nude snaps of the well-endowed hunk started hitting the Internet on Wednesday (07Oct15), and the singer's legal team has sent multiple cease and desist letters to news outlets that published them.

The lawyers claim the photos were taken without Bieber's knowledge, and they're promising to sue if news bosses don't comply.

One letter sent to the New York Daily News, which originally published the nude photos, demands the snaps are taken off the publication's website within 12 hours.

The cease-and-desist missive also acknowledges the photos are, in fact, of Bieber, despite online speculation the photos had been doctored to look like him.

Bieber's attorneys claim the publication of the photos represents a violation of the singer's publicity and privacy rights.