Homicide detectives are continuing to comb a house for clues after five people, believed to be two women and three children, were found dead in a Perth home.
A man aged in his 20s turned himself in at a regional police station on Sunday, with officers then visiting the Coode Street home in the Perth suburb of Bedford, where the five bodies were found.
Assistant Commissioner Metropolitan Region Paul Steel told reporters police arrived at the home about 12pm local time to find women and children among the dead.
It's believed the man was known to the victims with media, citing neighbours, saying a couple with three little girls, one aged three and 18-month-old twins, lived at the home.
Specialist forensic police are expected to continue a meticulous examination of the crime scene on Monday.
"Depending on the size of that crime scene that will take a period of time, and it could be a number of days," Mr Steel told reporters.
"Police have located the bodies of a number of deceased people including women and children," he said but would not say how they died or if any weapons were found. He also could not confirm the ages, genders and relationship of the deceased.
It is yet to be determined how long the bodies had been there, Mr Steel added. "It is a tragic thing when incidents like this occur. It does send a ripple through the community of Western Australia."
The man in question remains in custody and is being interviewed by police.
Australian Associated Press