The Desert Rd is closed following a truck crash that has left two people injured.
The truck has gone down a bank and a heavy vehicle salvage is under way, a Fire and Emergency NZ (Fenz) spokesman said.
NZ Transport Agency Waka Kotahi said State Highway 1 was closed between Waiouru and Rangipo and detours were in place.
A police spokesman said the single-vehicle crash was reported about 7am.