Legendary actress Eileen Ryan, mum of Hollywood star Sean Penn, has died at the age of 94.

Director Sean Penn and Eileen Ryan

The Little House On The Prairie star passed away at her home in Malibu, California, on Saturday, October 10, her representative announced on Sunday.

Eileen was mum to actor Sean, 62, musician Michael, 64, and actor Chris who passed away in 2006 at the age of 40.

Eileen's eldest son Michael tweeted a photo of his mother alongside a broken heart emoji.

He wrote: "We lost mom yesterday."

Eileen, who has enjoyed a glittering career in film and TV and appeared in iconic films including Magnolia and I Am Sam, would have turned 95 on October 16.