Erin Moran died from 'cancer complications'

Authorities say former "Happy Days" star Erin Moran likely died from cancer at her southern Indiana home.

A statement released Monday by the Harrison County Sheriff's Department says an autopsy revealed the 56-year-old actress had stage-four cancer, but doesn't specify what type.

The department says Moran died Saturday in the rural community of New Salisbury, about 20 miles northwest of Louisville, Kentucky. Officials say standard toxicology test results are pending but that no illegal narcotics were found at the home.

Moran, who played Joanie Cunningham on ‘Happy Days’ and ‘Joanie Loves Chachi’ was 56 years old.

According to TMZ, Indiana authorities received a call Saturday afternoon reporting an “unresponsive female.” EMT personnel arrived to find Moran already dead.

With the Associated Press