Two people are dead and two others are suffering critical injuries following two separate incidents this evening.
A person has died after being stabbed in the Far North shortly before 9pm.
Police arrived at the Moerewa address at 8.45pm to find the stabbing victim with a critical injury. The person died at the scene shortly after.
The alleged offender was known to the victim.
At the other end of the country, a woman is dead and two other people - the alleged attacker and one other - are in a critical condition following a stabbing incident in Christchurch.
The attack happened on Ilam Rd, in the suburb of Ilam.
Police arrived at the scene shortly before 7.50pm.
The deceased woman and a man had allegedly been stabbed by a second man.
That man had then allegedly turned the knife on himself.
All three people were known to each other and police are not seeking anyone else in relation to the incident.
A number of cordons were in place around the scene, and officers would remain there overnight.