In a statement, Detective Senior Sergeant Greg Standen said an investigation was underway.
"It is a sensitive situation which is understandably distressing for the family involved and support has been put in place for the family,'' Mr Standen said.
"An investigation is underway to establish the cause of death, which will include a post mortem and liaison with a number of medical experts. That process may take some time and until it is complete we do not feel it would be appropriate to comment further or to speculate on the outcome.''
A person from the close-knit Matata community said she understood a family with teenage children lived at the house.
She said the word within Matata was that there was believed to be nothing sinister in the discovery of the bodies.
Other neighbours in the area did not want to talk to The Daily Post when approached for comment.