A €10.7 million winning Lotto ticket was sold in Co Cork.
There was one winner of last night's jackpot, with the winning numbers 09, 12, 22, 28, 35, 47 and bonus number 37.
The exact location of where the ticket was sold will be revealed in the next few days.
A National Lottery spokesperson said: “With a jackpot win of this amount, it is important that we take some time to inform the winning retailer and of course to give the winning ticketholder the time and space they need to let this amazing win sink in so we will be announcing the winning store in the coming days."
People are being asked to check their tickets, and the winner is advised to sign the back of their winning ticket.