UPDATE 3.30pm: A Melbourne woman who died at the Earthcore dance festival in central Victoria may have had an existing medical condition, festival organisers say.
The 43-year-old from Bayswater in the city's east was found dead at the festival in Pyalong on Sunday, police said.
In a statement on their Facebook page, organisers said medical staff attended within two minutes of her being found and were unable to revive her.
"Our condolences to the family and friends of deceased. Before anyone jumps to any conclusions over this very sad situation we would urge caution in making comments that can harm the family and friends of the deceased any further," the statement read.
"We are aware of an existing medical condition and are waiting for the coroner's inquest."
They said counselling services are on-site for all staff and patrons.
"This is truly heartbreaking news and we will be releasing a formal statement once we have all the facts in place," they said.
"We strongly advise that making wild speculations during this very difficult time for the family and friends of the deceased will add more stress and difficulties to a very sad and unfortunate situation.
"We find some wildly inaccurate and defamatory comments by media and trolls counter-productive, unethical and opens up the potential for further harm to the grieving parties.
"We urge you if you do see someone making some unsubstantiated claim to kindly ask them to wait till all facts are ascertained before further comment."
A Victoria Police spokeswoman said the death was not suspicious and the cause would be determined by a coroner.
EARLIER: A woman found dead at Pyalong on Sunday is believed to have been attending the Earthcore music festival.
A Victoria Police spokesperson said a report would be prepared for the coroner after the body of an as yet unidentified woman was located at a Pyalong property about 4.30pm.
Earthcore is being held in the central Victorian town from November 24 to 28 with thousands of attendees camping around its four music stages.
The cause of death is still unknown but is not being treated as suspicious, the police spokesperson said.
Police arrested five people for drug possession at the festival last year in a blitz set up in response to multiple drug overdoses at music festivals.