Possible homicide investigated in Bunbury

WA's Major Crime Squad is investigating a possible homicide in Bunbury after a woman was found dead inside a house.

Police were called to the duplex on Ann Street, Eaton just after 8.30pm on Saturday.

A neighbour told the Bunbury Mail on Sunday the male resident "seemed quite angry" on Friday "and I could hear him smashing up things in his house".

"Usually there is a lot of very loud music playing during the day but yesterday was dead quiet, there was no movement of cars so I figured something was wrong," the neighbour told the Fairfax Regional Media publication.

A police spokesman said several reports were also received on Saturday night of a naked man behaving erratically on South Western Highway.