The Armed Offenders Squad was deployed and while clearing the address discovered the bodies of a 51-year-old Milton man and of two children, a 9-year-old boy and a 6-year-old girl.
The man (possibly the father) is believed to be a Corrections Department employee.
Police said they were not looking for anyone further in relation to the incident.
In an update from police
The children lived at the address with their 49-year-old mother. The mother was at the address at the time the incident occurred.
The exact relationship between her and the 51-year-old man is yet to be determined.
The Herald has learned that the 51-year-old man breached protection orders at least twice last year.
The particulars of those orders including who he was prohibited from contacting and why are unclear at this stage.
However he appeared in the Dunedin District Court on at least two occasions.
It appears that the deceased father is Edward Livingstone. If you know Edward and have any information about the circumstances he was facing prior to his death contact me at firstname.lastname@example.org
Further information from Police
The two reported breaches of protection orders were by way of phone contact in August and September 2013, and Edward was put before the courts as a result of these breaches.
From his employer
Edward Livingstone was given a final warning after twice advising his employer last year that he had breached a protection order
He had seen a psychiatrist following the incident, he said, “who changed the medication [he was] receiving” to make him more stable.