Two Aucklanders have split the $1 million First Division prize in Lotto.

But they didn't win Powerball so it's jackpotted to $27 million.

It's the second week in a row two Lotto players have shared a $1 million First Division prize - last Saturday residents Te Kuiti and Christchurch took home $500,000 each.

One of tonight's $500,000 winning tickets was sold at Countdown Silverdale. The other winner bought theirs online.

A $25 million Powerball was also up for grabs tonight, but went unwon so the major prize has rolled over to Wednesday when it will be $27 million.

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Strike Four has also rolled over tonight and will be $500,000 for the mid-week draw.

Lotto said anyone who bought their ticket from Countdown Silverdale should write their name on the back oand check it immediately at any Lotto outlet, online at mylotto.co.nz or through the Lotto NZ App.

Tonight's wins come after a First Division win on Wednesday when a Hawke's Bay resident became a millionaire.