Police are seeking help from the public over a fire that caused extensive damage to a building at Victoria University of Wellington Te Herenga Waka.
The fire was reported around 3am on Friday 1 October at the rear of 18 Kelburn Parade, just after three minor explosions were heard.
The fire spread from the ground floor to the second floor, leaving the building significantly damaged, police said.
"This building had been the target of some graffiti damage in the weeks leading up to the fire, and police are following inquiries relating to this," Acting Detective Senior Sergeant Richard Orr, of the Wellington Crime Squad, said in a statement.
Around the time of the fire, a vehicle was seen stopped nearby, and a motorbike was also seen and heard leaving the area.
Police would like to hear from anyone with information about the fire, or the graffiti.
They would also like to hear from anyone who saw pedestrians in the area at the time of the fire.
Police can be contacted on 105 and refer to file number 211001/7254.