Police don't believe a second person was involved in an incident on Saturday which saw a car driven into a river.
The stolen vehicle was driven into the swollen Maitai River near Nelson at around 4pm
A tracker dog was used to find one person off Maitai Valley Rd, who has since been arrested.
It was initially thought another person may be in the water and a search was launched. However, that's now been discounted.
The council will remove the car from the river once conditions improve.
Newshub.