Amazon boss Jeff Bezos has announced that he and wife MacKenzie are to divorce after 25 years of marriage.
The billionaire made the announcement on Twitter, saying that the pair will remain "cherished friends".
"We want to make people aware of a development in our lives," he wrote.
"As our family and close friends know, after a long period of loving exploration and trial separation, we have decided to divorce and continue our shared lives as friends.
"We feel incredibly lucky to have found each other and deeply grateful for every one of the years we have been married to each other. If we had known we would separate after 25 years, we would do it all again.
"We've had such a great life together as a married couple, and we also see wonderful futures ahead, and projects, and as individuals pursuing ventures and adventures. Though the labels might be different, we remain a family, and we remain cherished friends."
Last year, the couple launched the Bezos Day One Fund, offering a two billion dollar fund to help homeless families and build pre-schools in low-income neighbourhoods.
Mr Bezos is the founder and chief executive of Amazon, which recently took Microsoft's spot as the most valuable US firm.