LONDON - Lawyers for Britain's royal family will make a criminal complaint against the photographer who took pictures of Prince William's wife Kate sunbathing topless in the south of France.

William's office says the couple's lawyers will file the complaint with French prosecutors on Monday against the unknown photographer or photographers.

The palace says it will be up to prosecutors to decide whether to investigate and pursue the complaint.

Last week France's Closer magazine published paparazzi snaps of Kate, the Duchess of Cambridge, sunbathing topless during a holiday in Provence.

The couple's lawyers are suing Closer's publisher Mondadori in a bid to prevent further publication of the pictures.

Mondadori also owns Italy's Chi magazine, which says it will publish 26 pages of the images on Monday.

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  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge depart from Kuala Lumpur Airport to travel to Kota Kinabalu, Sabah, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge depart from Kuala Lumpur Airport to travel to Kota Kinabalu, Sabah, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge departs from Kuala Lumpur Airport to travel to Kota Kinabalu, Sabah, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge departs from Kuala Lumpur Airport to travel to Kota Kinabalu, Sabah, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Britain's Kate, the Duchess of Cambridge talks to people in the crowd during a walk through a central city park in Kuala Lumpur, Malaysia, Friday, Sept. 14, 2012. Prince William and Kate are in Malaysia for a three-day visit as part of a tour to mark Queen Elizabeth II's Diamond Jubilee. (AP Photo/Justine Guyton)

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge drink tea during a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    A Diamond Jubilee tea that was drunk by the Duke and Duchess of Cambridge during a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge attends a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge attend a Diamond Jubilee Tea Party at the British High Commission in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke of Cambridge takes off his shoes watched by Duchess of Cambridge prior to entering the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit a cultural fair at Kuala Lumpur City Centre Park, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge sign a visitors book at the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duke and Duchess of Cambridge visit the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Royal tour of the Far East and South Pacific - Day Four

    The Duchess of Cambridge visits the Assyakirin Mosque in Kuala Lumpur, as part of a nine-day tour of the Far East and South Pacific, with the Duke of Cambridge, in honour of the Queen's Diamond Jubilee.

  • Prince William, Kate, the Duchess of Cambridge

    Prince William and his wife Kate, the Duke and Duchess of Cambridge, center, take a walk through a central city park in Kuala Lumpur, Malaysia, Friday, Sept. 14, 2012. (AP Photo/Mark Baker)

  • Kate, the Duchess of Cambridge

    Kate, the Duchess of Cambridge, left, shakes hands with a woman in the crowd during a walk through a central city park in Kuala Lumpur, Malaysia, Friday, Sept. 14, 2012. (AP Photo/Mark Baker)