US actress Mary Tyler Moore is having brain surgery to remove a benign tumor.
Moore, 74, is best known for her television roles as a housewife in The Dick Van Dyke show in the 1960s and a liberated single working woman in The Mary Tyler Moore Show in the 1970s.
She was nominated for an Oscar for her performance in the 1980 film Ordinary People.
Moore has diabetes and works to raise funds and awareness of the disease.
Meningioma, a tumour that arises in the membranes surrounding the brain, is usually non-cancerous, according to the Mayo Clinic.
It occurs mostly in older women and can exist for years without showing significant symptoms.
