The hunt is on for dozens of lucky winners of a special EuroMillions Millionaire Raffle draw brought in to mark the opening of London 2012 on Friday night.
So far, 35 millionaires of a total of 100 have come forward to claim their prize, and the National Lottery is waiting for the remaining 65 to come forward.
"The 35 new millionaires will have woken up feeling like they have struck gold this morning," said a Lotto spokesman.
"They will never forget July 27 - not only was it the opening night of the Olympic Games but also the night they became a millionaire.
Players can check to see if they have won by looking on the website or visiting any National Lottery retailer.
The company's website crashed on Friday night as punters rushed to pick up a ticket last minute for the extra-large draw.
Organisers had been expecting a rise in interest, with one official saying sales would be up by more than 300% on a normal week.
