In the UK, a lottery ticket holder has missed out on a jackpot of more than £10.5 million (€12).
National Lottery players have 180 days to claim their prize, but the deadline has passed for the holder of a Lotto ticket which would have been worth £10.6 million.
Following an "extensive search", the National Lottery said no valid claim had been made by last Thursday's cut-off - and the money will now be donated to the good causes it supports.
A spokesperson for Allwyn, operator of The National Lottery, told the Press Association: "The majority of prizes that would go unclaimed would be the smaller tier prizes. It's very unusual for a prize of this size to go unclaimed."
The jackpot ticket was bought in Bexley, south-east London, on 4 October last year.
There are currently five "major" National Lottery prizes worth more than £3.2 million which are yet to be claimed.
Three are £1 million EuroMillions or Lotto tickets.
"Despite an extensive search for the mystery Bexley millionaire, I can confirm that the ticket-holder did not come forward to claim their Lotto prize and has now unfortunately missed out on this life-changing sum of money," said Andy Carter, senior winners' adviser at Allwyn.
"However, the money will now benefit Good Causes and add to the £33 million raised each week for National Lottery-funded projects, several of which can be found in the Bexley area."
National Lottery players have supported several projects across Bexley, including The Exchange Erith, a community-led arts and crafts organisation and You and Me Happy Family Children's Disability Trust, which delivers inclusive support for disabled children and their careers.
