Erin Moran passed away over the weekend, but the cause of her death was not known immediately. Now, investigations have revealed that the star likely died due to cancer.

The Harrison County Sheriff’s Department in Harrison County, Indiana finally released a statement about Moran’s death, E! News reported. The statement confirmed that the actress’ death was probably due to disease and not because of drug overdose.

“Erin Marie Moran-Fleischmann passed away at her residence located in New Salisbury, Ind. A joint investigation into Mrs. Moran’s death was conducted by the Harrison County Sheriff’s Department and the Harrison County Coroner’ Office. A subsequent autopsy revealed that Mrs. Moran likely succumbed to complications of stage 4 cancer,” the statement read. “Standard toxicology tests were performed and the results are pending. However, no illegal narcotics were found at the residence.”

READ: “Happy Days” star Erin Moran died broke and homeless

Prior to this report, a source told Daily Mail that Moran allegedly died due to heroin overdose. The same insider added that the actress did not have a comfortable life during her last days as Moran was apparently “broke and homeless” during the days leading up to her passing.

Moran shot to fame when she joined the cast of the 1970s sitcom “Happy Days.” The show ran until 1984. She also had small roles in “The Love Boat,” “Murder She Wrote,” “The Bold and the Beautiful” and “Diagnosis Murder.” In addition, the actress appeared on “Dickie Roberts: Former Child Star,” “Broken Promises” and “Not Another B Movie.”

Unfortunately, her stint on TV did not last long. Her last acting credit was back in 2010. In the same year, Moran reportedly lost her home in Palmdale, California to foreclosure, People reported. She and her husband, Steve Fleischmann, later moved to his mom’s trailer. Moran’s mother-in-law was sick, so she took on the role of her caregiver.

However, at one point, the two women had a drunken brawl because Moran reportedly often went to bars. Her mother-in-law couldn’t take it anymore, so she kicked her out of her trailer park home.