According to People, the iconic actress, 84, was at her and her late daughter's house in Beverly Hills Wednesday afternoon when 911 was called.
Reynolds was hospitalized after Fisher passed away from a heart attack Tuesday. The Star Wars actress went into cardiac arrest Friday while she was aboard an 11-hour flight from London to Los Angeles and was rushed to the hospital when it landed.
While Fisher was in the hospital, the Singin' in the Rain star kept fans updated on her progress, writing on Facebook Sunday, "My daughter, Carrie Fisher, is in stable condition in ICU. If there is any change, the family will share the information at that time. To all her friends and fans, I thank you all for your prayers and good wishes."
Following Fisher's death, Reynolds returned to the social media network with a touching note, writing, "Thank you to everyone who has embraced the gifts and talents of my beloved and amazing daughter." She added, "I am grateful for your thoughts and prayers that are now guiding her to her next stop."
We're keeping Reynolds family in our thoughts at this difficult time.