The death of a 7-year-old girl and her father has been confirmed as a murder-suicide.

An autopsy was conducted on the bodies of Adam Jay Eastman and Nia Eastman on Monday, which gave investigators that determination.

The specific cause of death will not be revealed by police, and it was added that there is no evidence to suggest anyone else was involved.

On Thursday, an amber alert was issued for Nia, after her dad didn't return her home the night prior.

Police found Adam's body at around 5:30am on Thursday, and later found Nia's body in a home in Choiceland that afternoon.