A ute towing a trailer has become submerged in Lake Dunstan after missing the approach to a bridge near Cromwell this afternoon.
A Fire and Emergency New Zealand (Fenz) spokesman said it responded to reports that a vehicle was submerged in the lake at 5.15pm.
Two crews from Cromwell attended the scene.
Fenz stopped at 6.30pm and left the scene in the hands of police, the spokesman said.
A police spokeswoman said they were responding to an incident on State Highway 8B on the Cromwell side of the bridge.
The ute was completely submerged in water and plans were being made to recover the vehicles.
It was unclear who or how many people were in the ute and police were investigating.
The Police National Dive Squad was notified and will attend tomorrow.
A scene guard will remain in place overnight, she said.
An eyewitness saw buoys floating in the water and five police cars at the scene at about 7pm.
