A National Lottery spokesperson said: "We’re delighted that the winner of this amazing prize has now come forward and we hope that they will enjoy their win. It would have been awful if the ticket-holder had missed out on this substantial and life-changing amount of money."
The winner has opted to remain anonymous.
The next Euromillions draw will be held tomorrow evening at 22:00 (CET) and four rollovers have pumped up the pot somewhat so the estimated jackpot is €49 million (£38 million).
