An elderly man and woman have died in a serious family harm incident in Christchurch, police say.
A house in the suburb of Burnside, on Wairakei Rd, was cordoned off due to the incident.
Police say a firearm was involved. St John was also called to the scene but referred all comment to police.
Canterbury District Commander Supt John price said the incident unfolded about 4am Monday.
"Police along with the Armed Offenders Squad and the Police Negotiation Team responded.
"Upon arrival, police found the bodies of an elderly man and woman at the address.
"A firearm was also located at the scene."
Supt Price said a homicide investigation has been launched, but no one else was sought in connection to the incident.
"Experienced officers are working to establish the circumstances surrounding this tragic event.
"We want to reassure residents, neighbours and the wider public there is no threat to anyone's safety.
"Events like these are very tragic and our thoughts are with those that knew the two people involved."
Supt Price said a scene examination is underway and a post mortem will be carried out in the coming days.