A body has been found inside a submerged ute in Lake Dunstan near Queenstown on Tuesday.
Emergency services were called to the crash on Monday night after a ute towing a trailer plunged into the water.
Police say the national dive squad started a search early Tuesday afternoon and they have now recovered the vehicle's sole occupant.
"Enquiries in relation to the death on behalf of the coroner are underway," a police spokesperson says.
"The removal of the vehicle and trailer is currently being completed."
Police say no further details will be provided until an official identification process has been completed.