Power has been restored to hundreds of properties in the Mount Maunganui.

In an updated statement, Powerco said it was investigating the cause of a power outage that affected 741 customers in Mt Maunganui at 11.25am.

Bayfair Shopping Centre was one of the properties affected.

Centre manager Steve Ellingford said at around midday the power had been out for about 30 minutes at the shopping centre.

He said most stores made their own decisions during an outage, with many choosing to close doors for security.

Customers largely waited around the centre, as outages were typically brief, Ellingford said.

He said police were onsite to provide support.

Powerco said power was restored to all affected customers by 12.25pm.

A number of properties have been affected by the outage. Image / Powerco