Actress Margot Kidder, best known for playing Lois Lane to Christopher Reeve's Superman, has died aged 69.
She was said to have passed away at her home in Montana on Sunday, but the cause of her death was not immediately known.
Kidder starred in more than 70 films and TV shows during her career, but rose to prominence for her role as the famed Daily Planet journalist in four Superman films in the late 1970s and 80s.
She was also well known as a political and women's rights activist.