State Highway 3 is closed near Kai Iwi, north of Whanganui, following a serious overnight crash. Reports say the crash occurs just before 2am and involves two vehicles. One person dies as a result of the crash, according to accounts describing it as a fatal two-vehicle incident. Emergency response is underway at the scene, and the road remains shut as authorities manage the incident and assess conditions before reopening. The closure affects traffic along State Highway 3 in the Kai Iwi area, with drivers advised to avoid the route until further notice. While details of the collision causes and vehicle movements are not provided in the available reports, both outlets characterize the incident as severe and confirm the same location and timing. The crash prompts ongoing disruption on the highway near Whanganui as officials deal with the aftermath.