Police are still trying to identify a person who died in a Northland fire after an Armed Offenders Squad callout.
Emergency services were alerted to the fire at a Mangamuka property south of Kaitaia about 12.30am yesterday.
Armed Offenders Squad members attempted to get inside the house to rescue the occupant but had to pull back due to a number of explosions.
An explosive device, believed to be a grenade, was later found by police when they entered the house.
Police said although the fire destroyed the house, a number of items have been located.