'Can't Buy Me Love' star Amanda Peterson dies at 43

Amanda Peterson, who starred opposite Patrick Dempsey in the 1987 romantic comedy Can't Buy Me Love, was found dead at her Colorado home over the weekend, her mother Sylvia confirmed to ET.

Peterson allegedly passed away on Friday, though her body was not discovered in her Greeley, Colorado home until Sunday. Peterson's death is still under investigation.

PHOTOS: Stars We've Lost In Recent Years

Peterson became a star after playing Dempsey's romantic counterpart Cindy Mancini in the hit '80s makeover movie, but left the industry just a few years later. She had been living in Colorado for several years.

Peterson's mother told ET that a basic toxicology test had been conducted on her daughter, but that the family was waiting on further reports to see if Peterson had any other medical conditions that may have contributed to or caused her death. She added that "this was not, in any way, a drug thing."

FLASHBACK: 14-Year-Old 'Can't Buy Me Love' Star Seth Green Rocked a Pretty Sweet Mullet