Video footage of the aftermath of the crash shows an Auckland Transport green Metrolink bus was involved in the incident.
The footage shows an ambulance arriving at the scene, then shows the bus stopped on the corner of Victoria St West.
On the road in front of the bus is a pile of abandoned clothes, believed to belong to the victim.
A close up of the bus shows a large dent in the vehicle's windscreen, and shattered glass spreading right across the driver's side of the window. A safety film means the windscreen in still intact.
Auckland Transport spokesman Mark Hannan said the bus operator was working with the police serious crash unit to investigate the cause of the incident.
Hannan said bus operator NZ Bus was supporting the driver.
NZ Bus said it was extremely concerned for the pedestrian who was involved in the incident involving an Inner Link bus last night.
"We have commenced our investigation into the incident and will assist the police in their investigation," it said.
The road was closed for some time following the incident.
