The Serious Crash Unit is investigating a crash that left one person critically injured near Taupō overnight.
A police spokeswoman said emergency services were called just before 11.30pm to the two-vehicle collision on the East Taupo Arterial route in Rotokawa.
One person was initially trapped and was then flown by helicopter to Rotorua Hospital in a critical condition.
The road was closed until about 4am.
