![](https://cdn.statically.io/img/imagez.tmz.com/image/9f/o/2012/08/31/9fd882c5310052aba2d1b5061827f320_md.jpg)
It's almost too much for anyone to bear ... Now we know why "Good Morning America" anchor Robin Roberts left a day before her scheduled medical leave -- her mother died Thursday.
Roberts -- who will be taking several months off to undergo treatment -- including a bone marrow transplant -- for a rare blood disorder -- flew to Mississippi Thursday to see her 88-year-old mother, Lucimarian Tolliver Roberts, before she passed away.
Roberts -- who battled breast cancer and developed the blood disorder as a result of chemo -- will be getting the life-saving bone marrow from her sister, Sally-Ann. The procedure is scheduled for next week.
See also
![](https://cdn.statically.io/img/imagez.tmz.com/image/58/16by9/2012/08/30/586298d31d565a229c0a8d7393cc83fb_xs.jpg)
Robin Roberts Leaves 'GMA' Early -- 'Some Things Happened at Home'
![](https://cdn.statically.io/img/imagez.tmz.com/image/83/16by9/2012/06/11/83caa628e849540a8132923a4c49a229_xs.jpg)
Robin Roberts Schedules Bone Marrow Transplant -- Friday Is My Last Day at 'GMA'
![](https://cdn.statically.io/img/imagez.tmz.com/image/08/16by9/2012/06/30/0813c7af47c252499b27f2a0245e10ca_xs.jpg)
Robin Roberts -- 'GMA' Planning A-List Subs While She's Gone
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