More than 1200 customers in the Whanganui area have been affected by power cuts this afternoon.
It follows a more widespread outage on Sunday night that affected 6500 properties.
Powerco says its contractors are out in the field on Monday afternoon to investigate the cause of outages in Springvale and Parikino.
Network operations manager Phil Marsh said the outages occurred within 10 minutes of each other but were unrelated.
About 300 customers were affected by the loss of supply at Parikino from 1.30pm while power to 950 Springvale customers was cut at 1.40pm.