The National Lottery is searching for a missing Lotto Millionaire Raffle winner from Hull.
There's just a week to go till the missing Lotto ticket is due to expire.
People in the city are being urged to check tickets from the Team-GB inspired Lotto Medal Draw on August 27 2016 for the winning Millionaire Raffle code AQUA 4738 7825.
The missing millionaire was one of 27 created in the draw to celebrate the 27 Gold medals won in Rio.
Andy Carter, from the National Lottery, said: "We're eager to find Hull's mystery ticket-holder and unite them with their winnings - this amazing prize could really make a huge difference to somebody's life."
The winning ticket expires on February 23.