Authorities have ruled out foul play in the death of That '70s Show star Lisa Robin Kelly.
An initial autopsy report has determined that Kelly's death was an accident stemming from "multiple drug intoxication" by oral ingestion.
The full autopsy is expected to be released in coming weeks.
Kelly publicly struggled with addiction, having been arrested four times in three years for a variety of charges, from DUI to assault.
The actress died on August 14, 2013 at the age of 43. Following her passing, her That '70s Show co-star Tanya Roberts told ET, "I really thought she was getting herself together. What an incredible waste. Lisa was so young and so talented. She was always so great on That '70s Show. She never missed a line. Not to mention what an incredibly sweet and funny person she was. My heart goes out to her family and friends."
Kelly checked herself into a treatment facility just days before her death.