A couple found dead in their Canterbury home both suffered a single gunshot wound, police say.
The pair - a 77-year-old man and a 63-year-old woman - were found dead when police were called to a house in Kaiapoi, just north of Christchurch, yesterday afternoon.
Police are not looking for anyone else in connection to the deaths.
Murder-suicide was one possible scenario being considered by police, said Detective Senior Sergeant Tony Hill said.
Asked if that was the most likely scenario, Mr Hill said: "It certainly isn't one of the stronger indicators at the moment."
Mr Hill said the sequence of events seemed clear.