Amid persistent rumors that Ashton Kutcher cheated on her, Demi Moore announced Thursday afternoon that she is ending her six-year marriage to the Two and a Half Men actor.  In a statement obtained by ABC News, the 49-year-old Moore said:

"It is with great sadness and a heavy heart that I have decided to end my six-year marriage to Ashton. As a woman, a mother and a wife there are certain values and vows that I hold sacred, and it is in this spirit that I have chosen to move forward with my life. This is a trying time for me and my family, and so I would ask for the same compassion and privacy that you would give to anyone going through a similar situation."

Moore and Kutcher tied the knot in September 2005.  This past September, there were reports that Kutcher, who's 33 years old, had an affair with a woman he met at a San Diego nightclub.  Soon afterward, Kutcher responded to the speculation by tweeting, "When you ASSUME to know that which you know nothing of you make an ASS out of U and ME."  Earlier this week, Us Weekly reported that the couple recently went to the home of Moore's ex-husband, Bruce Willis, in the Turks and Caicos Islands to work on their marriage.

Moore was previously married to Willis for 13 years. They have three daughters together.