"Happy Days" star Erin Moran died on Saturday and fans around the world are mourning the loss of the 56-year-old actress. An autopsy has revealed that complications from stage 4 cancer took her life.

Although there were rumors that Moran died from a heroin overdose, the new report from the Harrison County Coroner's Office states that although toxicology reports are not finalized, no drugs were found at the scene of her death.

Moran, who played Joanie Cunningham on "Happy Days" for almost 10 years, was found unresponsive on Saturday afternoon in Salisbury, Indiana. There has been some confusion as to whether she died in her mother-in-law's trailer or at a local hotel.

However, the Indianapolis Star reports that she was last known to be living at a Holiday Inn Express in Corydon with her husband, Steven Fleischman.

Erin Moran's illness

News that Erin Moran was battling cancer comes as a shock to many of "Happy Days" star's fans. The autopsy was conducted by both the conducted by the Harrison County Sheriff’s Department and the Harrison County Coroner’s Office and revealed that Moran had Stage 4 cancer. The coroner's office did not release details about the type of cancer Moran suffered from.

“A joint investigation into Mrs. Moran’s death was conducted by the Harrison County Sheriff’s Department and the Harrison County Coroner’s Office," Sheriff Rod Seelye told Fox News.

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"A subsequent autopsy revealed that Mrs. Moran likely succumbed to complications of stage 4 cancer."

No narcotics found

Although Fox News reports that toxicology results are pending, the coroner's office states that no illegal narcotics were discovered where Moran was living at the time of her death. It may be weeks before a final report is issued but, for now, complications from cancer is listed as her cause of death.

Erin Moran's final years were rocky

According to the Daily Mail, Erin's home in California was foreclosed on in 2010. She has lived in Indiana since then. At one point, she reportedly lived in her mother-in-law's trailer but she and her husband were told to leave due to their "partying ways." Fox News reports that she was last spotted in 2010 at a Holiday Inn Express. It is not known if she was in the hotel when she died.

Friends pay tribute to Erin

Funeral arrangements have not been released and her husband has yet to issue a statement about Erin Moran's death. However, fans, friends, and many of her co-stars have been tweeting about the loss of the "Happy Days" actress.