Carrie Fisher had cocaine, heroin, and ecstasy in her system the day she died, according to an autopsy report released today.

The report from the coroner listed sleep apnea as the star’s primary cause of death, with drug intake as a contributing factor. The report revealed that Carrie’s family would not allow a full autopsy, so the coroner had limited access to toxicology specimens. The final conclusions involved information from toxicology result and an external exam of the actress’s body.

The report stated:

“Urine toxicology on admission to the hospital was positive for cocaine, methadone, ethanol and opiates. Based on the available toxicological information, we cannot establish the significance of the multiple substances that were detected in Ms. Fisher’s blood and tissue, with regard to the cause of death.”

Carrie died on December 27, four days after she suffered cardiac arrest on an airplane arriving at LAX from London. The star’s assistant, who was with her on the flight, said she was fine at the start of the flight, but had “multiple apneic episodes, which was her baseline” during the flight, and emergency responders could not wake her upon landing.

The autopsy report said that Carrie may have taken the cocaine as many as three days prior to the flight, and that her likely exposure to heroin could have affected her breathing when she she went into cardiac arrest. The report could not determine when she might have taken the heroin or ecstasy.

The 60-year-old was also taking several prescription drugs, including Prozac, Lamictal and Abilify, as well as oxycodone without a prescription.

Upon the revelations from the autopsy, Carrie’s daughter, Billie Lourd released a statement to PEOPLE on Friday. She said:

“My mom battled drug addiction and mental illness her entire life. She ultimately died of it. She was purposefully open in all of her work about the social stigmas surrounding these diseases. 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.”