Two people have died following a serious crash on State Highway 3 at Kaitoke, just south of Whanganui.
Two people were also critically injured in the collision.
According to Police, emergency services were first alerted to a report of a crash involving two vehicles around 5.30pm on Thursday evening.
By the time first responders arrived at the scene, two people had died.
A third person involved in the crash was airlifted from the scene to Palmerston North Hospital in a critical condition.