LONDON (AP) -- Police in London say an autopsy hasn't determined a cause of death for singer Amy Winehouse -- and they'll "await the results of further toxicology tests."
A coroner's official says the scene of her death was found to be "non-suspicious" by police.
She had struggled with drug and alcohol abuse for years. The 27-year-old was found dead Saturday at her home by a member of her security team.
Today, her parents visited mourners outside the home to thank them for their support. A private family funeral could be held as early as tomorrow.
Celebrity fans are continuing to pay tribute to her. On Twitter, singer George Michael called her "the most soulful vocalist this country has ever seen" -- and said he hopes "she is at peace now."
Soul singer Adele -- among the British singers whose success Winehouse helped make possible -- says Winehouse "paved the way" for singers like her, and "made people excited about British music again." She said she's "grateful to be inspired by her."