Up to 27,000 people are without power on the Coromandel Peninsula, PowerCo has advised.
In a post to its Facebook page, PowerCo stated a Transpower outage has resulted in 27,000 customers currently being without power across the peninsula.
Transpower is aware of the outage and is working to reconnect as soon as possible, it said.
Transpower posted that one of its transformers tripped at 8.45am, and a crew was on the way.
Updates are available on the Transpower and PowerCo Facebook pages.