EXCLUSIVE: Cher 'worried' about her 90-year-old mother Georgia Holt's 'fragile' state, source says

Cher is putting her family first.

The 70-year-old actress worried fans after dropping out of her upcoming Lifetime movie due to a "serious family issue," though a source tells ET that the icon is in good health. Instead, Cher's inability to commit to the film stems from her concern for her mother Georgia Holt's "fragile" state.

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"Cher's worried about her mother's health. She's in her 90's now and does not want to be far from her," the source says. "Her mother is not deathly ill, but is somewhat fragile. "

"Cher's health is fine," the source added.

See photos of Cher and her mother, Georgia Holt:

In statement to ET on Friday, Cher announced that she dropped out of the Lifetime movie, which was based on the 2016 water crisis in Flint, Michigan, because she was "unable to leave Los Angeles."

"This has been a project so near and dear to my heart and I was truly looking forward to helping tell this story," she shared. "Unfortunately, I will be unable to leave Los Angeles during the scheduled filming as I am dealing with a serious family issue that prevents me from going on location for the April filming."

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"I'm so glad that Craig and Neil [the producers] plan to move ahead and I know that this Lifetime movie will be done beautifully," Cher added.

See photos of Cher: