Hayden Panettiere opened up about motherhood and addiction months before her death at 36

Actor Hayden Panettiere has died at 36.

Nathan Congleton/NBC via Getty Images "Heroes" actor Hayden Panettiere has died at 36, her representative told ABC News.

In May, she released a memoir detailing her struggles with postpartum depression and alcoholism.

She wrote that after giving birth to her daughter in 2014, she felt like her "soul was dead." Actor Hayden Panettiere has died at 36, her representative told ABC News on Monday.

"It is with profound sadness that we share the tragic passing of our beloved Hayden.

She was an incredible light and a force of nature who brought immeasurable love and joy to all who knew her — and to the millions who watched her onscreen," her father, Skip Panettiere, said in a statement to the outlet.

The family did not immediately provide any other details about her death.

Panettiere began her acting career as a child, with one of her earliest major roles as Sarah Roberts on the ABC soap opera "One Life to Live," on which she appeared from 1994 to 1997.

She later became widely known for playing Claire Bennet in the hit series "Heroes" and Juliette Barnes in the musical drama "Nashville." In her memoir , released on May 19, Panettiere wrote about her struggles with postpartum depression after giving birth to her daughter in 2014.

"It wasn't panic that was sitting in my chest.

It was nothing .

A total blackout of emotion, like my soul was dead," she wrote.

To deal with her symptoms, she turned to alcohol to get "those happy hormones," she wrote.

"The first thing I'd thought of when I woke up was alcohol.