Onlookers witnessed a swift response from police converging on Mayali Bend in Banksia Grove following reports of a woman found unresponsive around 9 a.m.
Despite swift intervention by St John Ambulance WA paramedics who provided immediate medical attention, the 42-year-old woman tragically could not be revived and was pronounced dead at the location.
The area remains partially cordoned off, with homicide detectives and forensic teams meticulously examining the scene for clues.
A man in his 40s is currently cooperating with police as part of their investigation.
Authorities urge anyone with information related to the incident to reach out to Crime Stoppers, either online at www.crimestopperswa.com.au or by calling 1800 333 000.
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