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.
The crashed Crown moving van.
"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.
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.
