The victim was said to have suffered serious injuries, initially.
The road was closed for some time as authorities worked at the scene. A police investigation is said to be ongoing.
The third person who died was also initially seriously injured in a single-vehicle crash at the intersection of State Highway 75 (Christchurch-Akaroa Rd) and McQueens Spur Rd last night.
Emergency staff were sent to the scene about 9.30pm after reports that a car had rolled there.
SH2 MASTERTON - SERIOUS CRASH - 7:45PM We have reports of a serious #crash at the intersection with Vivian St. Please follow directions of emergency services on-site. Updates will be posted as soon as new information becomes available. ^EH pic.twitter.com/OtCIbDBRYd
— Waka Kotahi Wellington (@WakaKotahiWgtn) July 5, 2020
The immediate area was also closed for some time. Police are now investigating the circumstances leading up to the crash.
Police have since revealed there was a fourth deadly crash last night.
Officers and emergency services were called to a single-vehicle crash on Springfield Rd, in the suburb of Taradale, in Napier shortly before midnight.
"The sole occupant of the vehicle died at the scene," police said.
An investigation into the circumstances of that crash is also now under way.
The crash happened about 3.30am and involved a car and a truck. After colliding with the truck, the car caught fire.
Police confirmed later that the driver and a passenger inside the car both died at the scene. Another passenger in the car suffered serious injuries and was taken to Dunedin Hospital for treatment.
The truck driver was taken to the same hospital for moderate injuries but was discharged shortly afterwards.
The Serious Crash Unit is now investigating that crash.