Actress Carrie Fisher died of sleep apnea and other undetermined factors, a coroner told The Associated Press Friday.
Officials could not conclusively determine a cause of death, the AP said.
Fisher had a buildup of fat in the walls of her arteries, Los Angeles coroner’s officials said in a news release.
The “Star Wars” actress had also taken multiple drugs, but investigators could not say whether they contributed to their death, the wire service said.
Fisher was 60 when she went into cardiac arrest on Dec. 23 aboard a flight from London to Los Angeles. She died four days later at a hospital. Her mother, Debbie Reynolds, died the following day at the age of 84.
Todd Fisher, her brother, said he wasn’t surprised. “There’s nothing about this that’s enlightening,” he told the AP.
He also said it wasn’t surprising that “Carrie did drugs,” he said. Many of the drugs were prescribed by doctors to try and treat her mental health conditions, he said.
"I am not shocked that part of her health was affected by drugs," Todd Fisher said.