United Kingdom, Oct. 16 -- Diane Keaton died from pneumonia.

The Annie Hall actress passed away on 11 October at the age of 79 and her family have now revealed her cause of death in a new statement, in which they thanked fans for their "extraordinary" messages of support.

Diane's family told People magazine: "The Keaton family are very grateful for the extraordinary messages of love and support they have received these past few days on behalf of their beloved Diane, who passed away from pneumonia on October 11."

The family suggested those who wanted to pay tribute to the Godfather star could make a donation to one of her favourite causes.

They added: "She loved her animals and she was steadfast in her support of the unhoused community...