A person has drowned after jumping off a moored crane in Te Whanganui a Tara/Wellington Harbour on Friday.
A rāhui will be put in place, with further details yet to be released, a police spokesperson said.
"The person was reported to have jumped from a crane on a boat that is permanently moored at the harbour."
Emergency services were first alerted at 12:45pm and the Police dive squad eventually found the person's body in the water just after 2:30pm.
The person jumped from the Hikitia Floating Crane, which is permanently moored to the Taranaki Street Wharf.
"Police will be undertaking enquiries into the circumstances of this incident," the spokesperson said.
Newshub understands the victim was a young man.
Two similar deaths happened in 2015 and 1996, from the same crane.
The drowning comes as the Z Manu World Championship kicks off in the capital on Friday afternoon.
Daniel Gerrard, chief executive of Water Safety New Zealand (WSNZ), expressed sorrow for the affected whānau.
"The recent tragedy is a heart-wrenching reminder of the critical importance of water safety."
He said WSNZ is more committed than ever to encouraging safe water practices.
"Through initiatives like the Z Manu World Championship, we aim to engage directly with enthusiasts, promoting safety in a sport that is not just about skill but also about respecting the water and understanding its risks."
Gerrard stressed the need for a culture of safety and respect for the water.