Lotto was forced to scrap last night's live televised draw and run it off-air after an electrical issue at the studio.
In an on-air message at 8.05pm, host Sonia Gray told viewers the studio had lost power.
Despite the disruption, the draw still produced three big winners - each taking home $333,333 with First Division.
The tickets were sold at Bayfair Lotto in Mount Maunganui and on MyLotto to players from the Kāpiti Coast and Central Otago.
The winning numbers were 7, 8, 13, 32, 33 and 37.
The Bonus ball was 22 and the Powerball was 5.
The lotteries commission said the draw would instead be conducted using a Random Number Generator under the scrutiny of the Audit Office, drawing on processes used previously during the Covid-19 pandemic.
Lotto NZ head of corporate communications Will Hine apologised to players, saying it was due to a "technical issue at TVNZ".
"We're sorry we were unable to bring our customers the live draw tonight," he said.
"Fortunately, we have established and secure processes that allow us to run the draw off-air using a Random Number Generator under the scrutiny of the Audit Office, in circumstances like this."
Hine said the off-air method had also been used in 2019, when a fire at the SkyCity Convention Centre disrupted filming.
Official Lotto results would be published later that evening, Hine said, though he warned this could be later than usual due to the disruption.
"We thank our players for their patience and understanding."
Powerball was not struck and has rolled over to Wednesday night, when the jackpot will be $7 million.
SHARE ME