Carrie Fisher’s death certificate has been released, but the results are inconclusive.
According to the certificate, the Star Wars actress’ died from “cardiac arrest/deferred,” Entertainment Weekly reports.
Following her autopsy on Dec. 30, the Los Angeles County Coroner’s Office is still trying to determine what triggered her heart attack during her flight from London to L.A. The office will continue to perform testings, including toxicology tests, to conclude her cause of death.
Her mother Debbie Reynolds’ death certificate was also released on Monday. It revealed the actress died from an intracerebral hemorrhage, also known as a stroke.
Fisher died at the age of 60 on Dec. 27 and Reynolds passed away at the age of 84, just one day later.
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This article originally appeared on Womanista.com