Motorists in West Auckland are being warned of a power outage in the area that has affected traffic lights in Te Atatu.
Police said just after 5.30pm contractors were working to repair the issue.
Traffic lights affected include the Te Atatu Road off-ramp and along Te Atatu Road.
In the mean-time, people were being encouraged to drive with caution.
The NZ Transport Agency has also posted a warning about the matter on its social media sites.
Due to power outage multiple Traffic Signals in Te Atatu Interchange area are out. Please follow give-way rules & take extra care ^TP— NZTA Akld & Nthlnd (@NZTAAkl) February 14, 2017