The Royal Family has criticised an Italian magazine for threatening to publish paparazzi photographs of the Duchess of Cambridge as she walked on a secluded beach in a bikini during a holiday to Mustique earlier this week.
Italian gossip magazine "Chi" said it had obtained photos showing Kate Middleton with a small but visible baby bump.
The 31-year-old is currently five months pregnant.
After news emerged that the photos would appear St James's Palace attacked the shots as a breach of the Duchess' privacy.
"We are disappointed that photographs of the Duke and Duchess on a private holiday look likely to be published overseas," a spokesperson said. "This is a clear breach of the couple's right to privacy."
Chi has a confrontational and controversial track record when it comes to the British Royal Family.
The magazine was heavily criticised for being one of the first European tabloids to publish pictures of Princess Diana as she lay dying following her fatal Paris car crash.
Last year it was also one of the European magazines that printed paparazzi photos showing Kate Middleton sunbathing topless during a holiday in France with her husband.