Tisa Farrow, an actress who starred in several films in the '70s and made a cameo in Woody Allen's 1979 film "Manhattan," has died, according to sister Mia Farrow. She was 72 years old.

Mia Farrow announced the news in an Instagram post Thursday that her sister "died unexpectedly," "apparently in her sleep" on Wednesday morning.

"If there is a Heaven, undoubtedly my beautiful sister Tisa is being welcomed there. She was the best of us - (I) have never met a more generous and loving person. She loved life & never complained. Ever," Farrow wrote in the caption of a younger photo of her sister.

Farrow shared that her sister "was a nurse for 27 years" and "a wonderful sister" as well as a "devoted mother." Her son, Army Sgt. First Class Jason F. Dene, died at age 37 while serving in Iraq in 2008. "This is a hard time for all of us who admire and love her so deeply," she added.

Her brother, John Charles Villiers-Farrow, told The Hollywood Reporter that Tisa Farrow died in Rutland, Vermont.

USA TODAY has reached out to a representative for Mia Farrow and the Vermont Department of Health for more information.

Theresa Magdalena Farrow was born in 1951 to Australian film director John Farrow and actress Maureen O'Sullivan and was one of seven siblings.

She made her film debut in 1970's "Homer," directed by John Trent, and starred opposite Don Scardino, according to her IMDb page. She went on to act in 1976's "Strange Shadows in an Empty Room" and 1979's "Zombie" (1979). One of her biggest roles was as Harvey Keitel's love interest, Carol, in James Toback's 1978 crime drama "Fingers."

She also appeared in the 2021 four-part HBO docuseries, "Allen v. Farrow," which explores Woody Allen and Mia Farrow’s well-publicized relationship and its fallout, as well as Dylan Farrow's childhood sexual abuse allegations against the prolific director, who has long denied her accusations.

Tisa Farrow said in an interview for the miniseries that she witnessed Allen "suggestively" applying sunscreen on his adoptive daughter when Dylan Farrow was a child, according to The New York Times and The Hollywood Reporter.