A celebrity fighting to keep his name out of a tabloid story about extra-marital activities has won his Supreme Court case.

Justices ruled that The Sun on Sunday cannot reveal the identity of the man referred to as PJS.

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.