Police are releasing few details about the death of a 30-year-old woman in her Perth home.
Paramedics called police to the Munster property about midday on Friday and her next of kin have been notified.
Forensic investigators remain at the property.
A naked and disorientated man who was running in nearby bushland on Friday remains in custody and police say he is assisting them with their inquiries.
Detectives do not believe there are any safety concerns for the wider public.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au.
