A celebrity who wants to keep his name out of a newspaper story about extra-marital activities has won his Supreme Court fight.
Justices ruled that The Sun on Sunday should be barred from revealing the identity of the man, referred to in court as PJS.
They delivered a ruling after analysing the latest round of the man's dispute with The Sun on Sunday at a hearing in London last month.
The man had asked the Supreme Court to consider the issue after losing his case in the Court of Appeal.
Three appeal court judges had ruled in April that an injunction barring The Sun on Sunday from naming him should be lifted.
But a panel of five Supreme Court justices has overturned that decision by a four-to-one majority and ruled that the injunction should stay in place.
The Sun on Sunday wants to publish an account of the man's activities, but the man argues that he has a right to privacy and has taken legal action.
He had sued News Group Newspapers, which publishes The Sun on Sunday, claiming that publication of information about alleged extra-marital activity would be a misuse of private information and a breach of confidence.
Any trial of those claims is likely to be overseen by a High Court judge, who could decide to lift the anonymity injunction after analysing all evidence from both sides.
Four of the panel of five justices decided that there was an "absence on present evidence" of "any genuine public interest" justifying publication of the man's identity.
They said an injunction pending the outcome of any trial was "appropriate" to protect PJS, his partner and their "young children" against "further invasion of privacy".
They said allowing the man's name to be revealed now would be likely to "deprive" any trial of "any real purpose".
Judges have previously said that the man is in the entertainment business. They have said his spouse - named as YMA - is also well-known in the entertainment business. They say the couple have "young" children.
The Sun on Sunday had won the first round of the fight over identity in January, when a High Court judge refused to impose an injunction barring publication.
But the man appealed - and two appeal court judges ruled in his favour.
Lord Justice Jackson and Lady Justice King imposed an injunction preventing the newspaper from identifying the man in an article.
Lawyers for News Group Newspapers, publishers of The Sun on Sunday, then asked three appeal judges to lift the ban after the man's identity emerged online.
They told Lord Justice Jackson, Lady Justice King and Lord Justice Simon at a Court of Appeal hearing in London in April that the ban should go because the man had been named in articles abroad - outside the legal jurisdiction of England and Wales - and his name could be found on the internet.
The man opposed the application and said the ban should stay.
But Lord Justice Jackson, Lady Justice King and Lord Justice Simon ruled in the newspaper's favour.
"Knowledge of the relevant matters is now so widespread that confidentiality has probably been lost," Lord Justice Jackson said.
"Much of the harm which the injunction was intended to prevent has already occurred."
He added: "The court should not make orders which are ineffective. It is, in my view, inappropriate (some may use a stronger term) for the court to ban people from saying that which is common knowledge."
But the Supreme Court justices came to a different conclusion.