The holder of the winning Euromillions ticket - bought in Limerick - has until 5pm to step forward
The winner of a €500,000 Euromillions plus prize has just hours to claim their winnings.
The deadline to claim half a million euro is 5.30pm.
The winning ticket was sold in SuperValu in Castletroy on the 11th of November and has the winning numbers 3, 4, 21, 27, 45.
Paula McEvoy from the National Lottery has this advice for ticket holders who have not yet checked their numbers:
"All that anyone has to do, is come in with their lucky ticket which they purchased in the SuperValu in Castletroy on the 11th of November of last year, and that ticket is worth half a million euro."