Investigations are continuing into the cause of an outage which left more than 700 properties powerless in Katikati.

A total of 789 properties were affected by a power cut in the Western Bay town on Tuesday.

The supply went off around 9am.

Of the original 789 customers who lost supply just after 9am Tuesday, 263 remained without power around 2.30pm.

In a statement to SunLive this morning, Powerco says the remaining 263 Katikati customers were reconnected just before midnight last night, with their power restored via generators.

'Investigations are on-going into a fault in an underground cable, which is believed to have led to the outage.

'Powerco thanks customers for their patience and understanding as field crews work to restore supply.”