COEUR D’ALENE, ID (AP) — Patty Duke, who won an Oscar as a teen for “The Miracle Worker” and maintained a long and successful career throughout her life, has died at the age of 69.

Duke’s agent, Mitchell Stubbs, says the actress died early Tuesday morning of sepsis from a ruptured intestine. She died in Coeur D’Alene, Idaho, according to Teri Weigel, the publicist for her son, actor Sean Astin.

READ MORE: Santa Clara Shoe Store Ransacked in Late Night Smash-and-Grab Robbery

WASHINGTON, DC - MARCH 30:  (U.S. TABS AND HOLLYWOOD REPORTER OUT)  Actress Patty Duke attends the Creative Coalition's 2004 Capitol Hill Spotlight Awards ceremony with her son actor Sean Astin March 30, 2004 in Washington, DC.  (Photo by David S. Holloway/Getty Images)

Actress Patty Duke with her son actor Sean Astin (credit: David S. Holloway/Getty Images)

 

READ MORE: COVID Omicron: Rush To Vaccinate In East Bay As New Variant Emerges

Duke, born Anna Marie Pearce, followed on her early success playing the young Helen Keller with a popular sitcom, “The Patty Duke Show,” which aired in the mid-1960s. She played dual roles under a then-unconventional premise: identical twins living in Brooklyn Heights, N.Y.

Duke was also an outspoken advocate for mental health. She was diagnosed as bipolar in 1982 after years of battling mental illness.

 

MORE NEWS: Lee Elder, 1st Black Golfer To Play Masters, Dies At Age 87

© Copyright 2016 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.