Peaches Geldof's sudden death may remain a mystery for weeks, as police wait on a toxicology report after a post-mortem failed to provide an explanation.
The post-mortem was held on Wednesday morning, but it "proved inconclusive pending the result of toxicology analysis", Kent police said.
The 25-year-old celebrity was pronounced dead by paramedics in her home in Wrotham, Kent early on Monday afternoon UK time, after police were called to the scene.
According to media reports no drugs, suicide note or visible signs of injury were found at the scene.
"This is being treated as a non-suspicious, unexplained sudden death," police said on Wednesday.
"Officers continue to investigate the circumstances surrounding the death in order to compile a report for the coroner."
A full toxicology report could take several weeks to prepare.
Geldof, the daughter of Irish musician Bob Geldof and the late TV presenter Paula Yates, had worked as a model, writer and television presenter.
She grew up in the glare of Britain's press, which revelled in the late-night antics of her teenage years, and in the shadow of her mother's death from a drug overdose when Peaches was 11.
More recently she had married for a second time, to musician Tom Cohen, had two young sons and worked as a broadcaster and fashion writer. She said in 2009 that her drug-taking years were behind her.
- Sydney Morning Herald, AP