Rupert Murdoch's divorce filing said the "relationship between husband and wife has broken down irretrievably," according to a New York Times report.
It added that a spokeswoman for News Corporation, his media company, confirmed that it was Mr Murdoch who had made the filing.
The spokeswoman added that the divorce would have no impact on the company.
More top news
William and Harry said they would never speak so publicly about their mother ever again but felt it was "the right time to do it".
Gay men will be allowed to donate blood three months after having sex instead of a year, the Government has announced.
The 20-year-old died after being chased by police and apprehended in a shop in Hackney, east London.