A burst water main on major traffic route in central Wellington looks set to cause water outages in parts of the city centre and surrounding suburbs for most of the day.
Wellington Water said it was a major repair and was expected to take until 5pm to fix.
Some lanes on Kent and Cambridge Terrace are closed, and drivers going to the airport are being warned to go the coastal route through Oriental Bay.
There will likely be water outages today on Courtenay Place, Kent Terrace, Cambridge Terrace and properties around the suburbs of Mount Victoria, Roseneath and Hataitai.
And all of Hay Street and Telford Terrace off Oriental Parade, about 60 properties, will also likely be without water until after midday on Wednesday, due to a seperate outage.
Contractors were at the scene before 5am on Wednesday, and commuters were warned to take care in the area.
Water was earlier covering nearly three lanes of Kent Terrace and parts of Cambridge Terrace.
One cyclist told RNZ she became stuck in silt from the flooding on her way to work.
"I didn't see the sign, there was no sign to see it and I just thought I was going left instead of straight ahead.
"Fortunately there was someone there to help me get out of it and they were very helpful."