Olivia Munn has revealed her mother has been diagnosed with breast cancer, more than a year after the actress shared her own cancer diagnosis.

Breast cancer survivor Olivia Munn says her mother Kim is battling the same disease. "My mother was diagnosed with breast cancer," the Newsroom and Your Friends and Neighbors actress, 45, wrote on Instagram Wednesday.

The 'Your Friends & Neighbors' star said she and her mom were there for each other for both of their double mastectomy surgeries: "There's something about watching a loved one go through it that is even more heartbreaking.