'Happy Days' star Erin Moran likely died from stage 4 cancer, officials say

The actress best known for playing Joanie Cunningham was found dead Saturday.

The joint statement posted to Facebook on Monday by the Harrison County Sheriff's Department and Harrison County Coroner's Office said autopsy results show that the 56-year-old actress, whose legal name was Erin Moran-Fleischman, had stage 4 cancer. It does not specify what type of cancer.

Although toxicology test results are still pending, the statement added that no illegal narcotics were found at Moran's home.

The actress was found dead Saturday in her home in New Salisbury, Indiana, about 20 miles northwest of Louisville, Kentucky, after paramedics responded to a 911 call.

But, in recent years, she had fallen on hard times. In 2009, she told Xfinity that she was working on a memoir called, "Happy Days, Depressing Nights."

Over the weekend, Moran's co-stars took to social media to remember her.