Ashlee Jenae was involved in a dispute with her fiancé Joe McCann before her tragic death in Tanzania earlier this month … something local police say is now part of an active investigation.

According to North Unguja Regional Police Commander Benedict Mapujira, the couple had a falling out at the luxury resort Zuri Zanzibar … with hotel staff stepping in and separating them into different rooms.

The situation escalated enough for staff to alert authorities, with concerns raised about Ashlee’s well-being — prompting a report to Nungwi Police Station.

Her family said Ashlee — real name Ashly Robinson — was found unconscious in her villa and she was rushed to a hospital — police say she died the following day, Friday the 10th. A local news report indicates police believe she died by suicide.

Ashlee’s father, Harry, tells TMZ that was the early narrative from police — but stresses the family is now involved, and the investigation is ongoing.

He adds they’ve been in contact with the embassy and funeral director … and, as of now, there’s still no official ruling on her cause of death.