Coroner can't rule Australian woman's death a homicide

The Melbourne woman had been volunteering when she was found dead outside a toilet block in the beach town of Tofo on November 9, 2016.

A Mozambique autopsy found homicide was her medico-legal cause of death, by suffocation on sand.

But Judge Cain could not rule whether the 20-year-old's death was a homicide.

He found the cause of death was asphyxiation from sand but he could not determine how the sand ended up in her lungs.

Judge Cain could also not say whether Ms Warren's death happened outside the toilet block or if her body was moved there.

The coroner could not determine whether the 20-year-old had been sexually assaulted, although it was a possibility.

Judge Cain said it was also possible that a person or multiple people caused or contributed to her death.

The coroner pointed to the Mozambique authorities' decision not to hand over the brief of evidence as the reason for his limited findings.