Kris Jenner Pens Emotional Tribute to Debbie Reynolds: 'I Cannot Imagine the Pain of Losing a Child'

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Kris Jenner penned an emotional message on the "heartbreaking" death of Debbie Reynolds.

The Keeping Up With the Kardashians matriarch took to Instagram on Thursday to share her condolences following the death of both Reynolds and her daughter, Carrie Fisher.

RELATED: Debbie Reynolds' 'Greatest Fear' Was Outliving Her Daughter Carrie Fisher, She Once Wrote

"Absolutely heartbreaking and unimaginable," Jenner captioned a throwback photo of Reynolds with her two children, Carrie and Todd Fisher. "As a mother I cannot imagine the pain and heartbreak of losing a child. A loving and devoted mother, grandmother and a true Hollywood legend... Debbie Reynolds, you will be forever missed but never forgotten!! My love and prayers are with Debbie and Carrie's family. "

WATCH: Debbie Reynolds and Carrie Fisher Documentary 'Bright Lights' Set for January Premiere on HBO

Jenner’s dedication to Reynolds came one day after she shared a post on the "tragic loss" of Carrie, and praised the Star Wars actress as an "inspiration to so many women."

"Your strength and spirit will be missed, @carriefisherofficial," she captioned a photo of Carrie as Princess Leia. "My love and prayers go out to her mother and her family."

MORE: Inside Carrie Fisher and Debbie Reynolds' Unique Mother-Daughter Relationship

It's been a busy holiday season for the 61-year-old mother of six. In the midst of honoring Reynolds and Carrie, the mother of six was dealing with her own family emergency after her son, Rob Kardashian, was briefly hospitalized for diabetes. See more in the video below.