A short but widespread power cut was experienced by more than 10,000 Whanganui homes yesterday aftenoon.
The power outage at 2.43pm was caused by a supply issue.
A Powerco spokeswoman said power was restored to 10,855 customers in Whanganui in seven minutes.
Affected areas included: Aramoho, Brassey Rd, College, Pitt St, Springvale, St Johns and Westmere.
Powerco is currently investigating the cause of the fault.