Police have named two Saudi Arabian sisters found dead in a unit in Sydney's south-west last month, as the mystery over their "unusual" deaths continues.
Asra Abdullah Alsehli, 24, and Amaal Abdullah Alsehli, 23, were found dead in separate beds at their Canterbury unit during a welfare check at 9.30am on Tuesday, June 7.
Police said the women, who arrived in Australia from Saudi Arabia in 2017, had been dead for "some time".
Despite speaking with community members and neighbours and undertaking extensive investigations, detectives have been unable to determine the circumstances surrounding their "unusual" deaths.
Police say they have not yet ruled out homicide or suicide as investigations continue.
In a renewed effort for clues, police have released a picture of the pair and asked for any information on the women.
A post-mortem examination has been conducted but police are yet to receive the coroner's report or toxicology results.
"The bodies were there for some time, so that is problematic," Detective Inspector Claudia Allcroft said.
She said the pair mostly kept to themselves.
"Detectives are interested in speaking with anyone who may have seen the women or have information about their movements in the days and weeks prior to their deaths — which we believe occurred in early May," Detective Inspector Allcroft said.
"Extensive inquiries have been made ... however, we have been unable to determine the exact circumstances surrounding Asra and Amaal's death."
She said police were in contact with their family who remain in Saudia Arabia.
Police will not release information on what the women did for work or why they left their home country.
Detective Inspector Allcroft said police were contacted by the sisters' building manager to conduct a welfare check on the women in mid-March.
"I believe food had been left out in the common areas and he was concerned for their welfare," she said.
But, the women "appeared fine" and no further action was required, Detective Inspector Allcroft said.
