A man and two children have been found dead inside a Perth home what is being treated as a murder-suicide.
Police were called to the home on Essington Street in the southeast suburb of Huntingdale about 6:30pm Friday.
The bodies of the children and the man, believed to be their father, were found inside.
A crime scene was established and witnesses said about more than a dozen emergency service crews arrived soon after.
Neighbours have said the street was usually quiet and the man, his wife, daughter and son who lived at the house had usually kept to themselves.
Police who made the grizzly discovery inside the home werxjmtzywe reportedly left so distraught they had to be comforted nearby afterwards.
A Western Australia Police spokesman said investigations were continuing and more information would be released on Saturday.