The driver of a van involved in a fatal crash by Wellington's Terrace Tunnel yesterday is "pretty shaken up", his employer says.
One person died in the serious crash, which closed both directions of the tunnel, which is the main route in and out of the CBD.
The crash happened about 7.50am as rush hour traffic poured into the city.
A car and a Crown van towing a trailer collided at the southern entrance of the tunnel.
Crown general manager James Logan said there were two staff members in the van when the crash happened.
He said the driver would be off work for at least a week.
"He's pretty shaken up and he's got a little bit of whiplash, but otherwise he's okay."
Logan said the staff were "quite lucky" to have come out of the crash relatively unscathed.
Crown's support networks were helping the staff members.
"Our thoughts are with the family and friends of the deceased person," Logan said.
Crown was awaiting the police report to find out how the crash had occurred.
A witness to the aftermath of the crash said she was walking to work over the Terrace Tunnel when she saw emergency service vehicles.
"I was walking above the Terrace Tunnel on Macdonald Crescent so looking down I saw all the emergency services that were there.
"There was what looked to be a Crown moving van with a trailer and a silver wreck which was completely totalled," she said.
"The ambulance staff were working on someone extensively. I was thankful I couldn't see great detail of who or what they were working on but there were people on the overpass craning over."
The witness said it appeared a northbound vehicle may have clipped a vehicle in the southbound lane.
"I know the speed at that time of day is pretty slow moving going south, but the northbound lane tends to be able to go faster in the morning," she said.
"It was surprising to see that in central Wellington because you don't usually have speeds where you would have that kind of car damage."
Six people have died on New Zealand roads over the past two days.
1.30am: A 22-year-old man died when a car containing four people crashed into a wall in New Plymouth. Three people remain in hospital - one in a critical condition and two with serious injuries.
7.50am: One person died after a truck and car collided in the Terrace Tunnel in Wellington. A second person had minor injuries.
1pm: One person died in a single vehicle crash on State Highway 35, south of Tolaga Bay, Gisborne. A second person had minor injuries.
3pm: One person died in three-car crash on Tekapo-Twizel Rd at Mt Cook. Two other people were seriously injured, and one moderately.
5.15pm: A 64-year-old female died in hospital following a crash on State Highway 16 at Waimauku. Two other people were seriously injured.
8.10am: One person died in a serious crash on Piako Rd, Morrinsville. Two other people were taken to hospital in a moderate condition.