Emergency services are at the scene of a two-truck crash in the Bay of Plenty.
A motorist near the accident on State Highway 29 in the lower Kaimai Ranges said a truck had failed to take a bend in the road and went up a bank.
Another truck travelling behind couldn't stop in time and crashed into the truck, pushing it down the bank.
The driver was initially trapped in their vehicle, but a Fire and Emergency spokesman told the Herald they had since been freed.
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A St John's spokesperson said one person had been taken by ambulance to Tauranga Hospital with critical injuries.
A police spokeswoman said motorists should avoid the area as both lanes are blocked.
Diversions were in place from Cambridge St to Pori Rd.
A motorist said traffic was "horrendous".
The crash scene was cleared at 11:20pm.