Investigations into a drug overdose on the Gold Coast.
New Zealand woman Danielle Whitaker has died of a suspected overdose at her 40th birthday party.
Nine News reports two other people were found not breathing, and one is still in hospital.
Australian correspondent Murray Olds says little is known about what substance was involved.
"The drug they took, according to the paramedics, makes you stop breathing. And this is apparently what's happened here."
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