A Carmarthenshire millionaire is sitting on a fortune – without knowing it.

Every week, the National Lottery’s Millionaire Maker guarantees to create two millionaires – one on Tuesday and one on Friday – but with the EuroMillions Mega Friday draw on July 29, five players won a guaranteed £1m plus a trip to Australia’s Gold Coast.

One of the winners bought their ticket in the Carmarthenshire area, but is still to claim their prize.

The search is now on to find the owner of the winning ticket and players in the area are being urged to check and double-check their unique Millionaire Maker code for the chance to become an instant millionaire.

For every EuroMillions line played, UK players automatically receive a EuroMillions UK Millionaire Maker code printed on their ticket. The winning selection on Friday, July 29, was BRR 888846.

The ticket-holder has until January 25, 2017, to claim their prize.

If no-one comes forward with the winning ticket before the prize claim deadline, the prize money, plus all the interest it has generated, will go to help National Lottery-funded projects across the UK.

A National Lottery spokesperson said: “We’re desperate to find this mystery ticket-holder and unite them with their winnings, this amazing prize could really make a huge difference to somebody’s life.

“Thanks to EuroMillions Mega Friday the lucky winner will receive £1m plus a trip to Australia’s Gold Coast - which would certainly be an amazing introduction to the millionaire lifestyle.

“We’re urging everyone who bought a ticket in this area to check their old EuroMillions tickets again or look anywhere a missing ticket could be hiding, so that this prize can turn someone into the newest member of the lottery millionaire club.

“Try checking in the pockets of clothing, in wallets, bags and down the back of the sofa.

“We have the champagne on ice and our fingers crossed that the lucky winner comes forward to claim their win.”

For further information call 0845 912 5000 or visit national-lottery.co.uk