The winning Powerball tickets were sold in Kawerau, Christchurch and online in Auckland.The winning Powerball tickets were sold in Kawerau, Christchurch and online in Auckland.

Three lucky punters are taking home $18.3m from the record-breaking $55m Powerball jackpot - the largest in Lotto's 38-year history. Photo / NZ Herald compositeThree lucky punters are taking home $18.3m from the record-breaking $55m Powerball jackpot – the largest in Lotto’s 38-year history. Photo / NZ Herald composite

What to do if you win