A woman accused of murdering her roommate at an aged care facility in Port Kennedy has appeared in court.
Suzanne Margaret Lupica, 75, allegedly killed an 88-year-old woman at the Bethanie Waters Aged Care facility about 4.20am on Friday, January 24.
They had been sharing a room for four days.
WA Police have not revealed how the victim allegedly died.
Ms Lupica appeared in the Northbridge Magistrates Court on January 26.
She did not apply for bail and is next due to appear in the Stirling Garden Supreme Court on February 19.
"Our heartfelt condolences go out to the family and loved ones of the deceased," Bethanie CEO Roule Jones said in a statement.
"Our staff responded quickly and professionally when the alarm was raised, and followed all Bethanie procedures. We wish to reassure the public that no Bethanie staff were involved in this incident. The safety, wellbeing, and care of our residents remain our highest priority.
"Bethanie continues to fully cooperate with the police investigation, and as the matter is now before the courts, we are unable to provide further comment."
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham