Sienna Miller has launched a legal battle against News International and photo agency Big Pictures at the High Court.
Law firm Carter-Ruck has served a writ for breach of privacy against the News of the World, the Sun, and the Big Pictures agency relating to a series of articles about the star.
It is believed that the writ relates to two articles that appeared in the Sun where Big Pictures contributed photos. The stories and pictures reported on Miller's holiday in Italy and also referred to her friendship with Balthazar Getty, heir to the Getty oil fortune.
Miller is taking action over a further two articles that appeared in the News of The World.
She has previously taken legal action against the two titles after the papers used photos of her filming a nude scene for a movie.
Read more about Sienna and Balthazar and their Italian getaway.