Authorities believe the pair were known to each other.
An investigation is underway after two bodies were found inside a home in Melbourne's south-west.
Police were conducting a welfare check at a property on Melton Close in Werribee shortly after 3.30pm yesterday before finding the body of a 31-year-old man and a 29-year-old woman inside the home.
A postmortem will be conducted to determine the cause of death.
Detectives are not currently looking for anyone else in relation to the deaths and believe the pair were known to each other.
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