A thermal camera helped discover a 29-year-old who was hiding from police in the Waikato River after crashing a rental car into the water overnight.
Hamilton police shift manager, Senior Sergeant Andrew O'Reilly, said police attempted to stop the silver Toyota saloon on Hukanui Rd in Chedworth.
Mr O'Reilly said the driver refused to stop, fleeing down down Clarkin Rd at well over 100km/h, losing police.
"Police patrols began converging on the area and one pair of officers reached the Clarkin Rd and River Rd intersection and noticed wheel marks going across the grass along River Rd, heading towards the Waikato River."
Mr O'Reilly said officers found the car upside down in an area flooded by the river's overflow.