Joan Collins has led the tributes to her sister Jackie - who has died from breast cancer aged 77.
The 82-year-old says she's "completely devastated" by the news, describing the novelist as her "best friend".
Jackie was diagnosed six-and-a-half years ago, but Joan only found out in the last two weeks.
Showbiz journalist Jeanne Wolf was a good friend of Jackie's and says she was an incredible character:
Gayl Murphy - a Hollywood correspondent in LA - says the fact she managed to keep her illness secret is surprising:
