Hollywood star Jane Fonda (84) is suffering from cancer.

The actress announced this via Instagram on Friday.

She was diagnosed with so-called non-Hodgkin lymphoma and started chemotherapy, wrote the two-time Oscar winner ("Klute", "Coming Home") on the social network.

This is a cancer that responds very well to treatment.

Fonda wrote that 80 percent of patients would survive.

Therefore, she considers herself "very lucky".

She also has good health insurance and access to the best doctors.

"I realize, and it's painful, that I'm privileged in that regard.

Almost every family in America has been through cancer at some point, and far too many don't have access to the kind of medical care I have, and that's not right.

Fonda said she started chemotherapy six months ago and is tolerating the treatment quite well.

Illness and treatment would not slow down her commitment to climate protection, she asserted.

Fonda has been politically active for decades.

In the 1970s, she protested loudly against the Vietnam War.

Most recently, she made headlines with her work as a climate protection activist.

She was arrested several times during protests in Washington.

As an actress, Fonda was most recently in front of the camera for the Netflix comedy series "Grace and Frankie".

In 2018 she was seen in the cinema in the comedy The Book Club.