The Los Angeles County medical examiner's office monday released a summary of its findings into the death of "Star Wars" actress Carrie Fisher. The actress and writer died in December at the age of 60. Her mother, actress Debbie Reynolds, died one day later.

 

Carrie Fisher had multiple drugs in her system when she went into cardiac arrest on a flight and later died, according to a full autopsy report.

 

The Los Angeles County Medical Examiner concluded that "sleep apnea and other undetermined factors" contributed to Fisher's death in December at the age of 60. The autopsy report notes the significance of the "multiple substances that were detected in Fisher's blood and tissue" with regard to the cause of death could not be established.

 

A press release from the coroner's office issued Friday mentioned that drugs were found in Fisher's system, but it was not detailed.

 

The toxicology review released Monday found evidence that Fisher may have ingested cocaine within 72 hours of falling ill. Heroin and methadone were also cited, along with "remote exposure to MDMA."

 

MDMA is commonly known as the drug ecstasy. Fisher was open about her battles with substance abuse and mental illness, writing about them in her memoirs.

 

Fisher's daughter, Billie Lourd, said after the medical examiner's report was released that her mother "battled drug addiction and mental illness her entire life" stating that "she ultimately died of it."

 

"She was purposefully open in all of her work about the social stigmas surrounding these diseases," Lourd said in a statement.

 

"I know my Mom, she'd want her death to encourage people to be open about their struggles. Seek help, fight for government funding for mental health programs. Shame and those social stigmas are the enemies of progress to solutions and ultimately a cure. Love you Momby," she added.

 

Fisher's death came four days after she suffered a cardiac event on a flight from London to Los Angeles.

By Nicole Chavez and Steve Almasy, CNN