A water main has burst, sending a huge wave of water down central Wellington's Aro Valley.
Wellington City Council says Wellington Water is aware of the burst pipe and its crews are responding.
Wellington Water says the water main has been isolated, and there is no impact on local service.
Repair crews are still onsite, and once traffic is cleared they will expose the main and repair it.
It's the second pipe burst this week after a wastewater pipe broke under the city on Monday near the Civic Square area of downtown Wellington, letting out a foul stink.
Chairperson of resident association Inner City Wellington, Reverend Stephen King, yesterday said the major outage last summer and multiple similar issues in 2020 had left those who lived and worked downtown resigned to expect more poo-namis this year.
"For us in the inner city this is more of a certainty ... it's a 'when' not 'if'."
A massive renewal programme of the city's ageing water infrastructure is in the works.