A syndicate won Wednesday's lotto jackpot worth €12.8 million.
The winning ticket was a Quick Pick bought in Supervalu in Knocklyon.
The jackpot worth €12,849,224 is the largest of 2017 so far.
A spokesman said: "The National Lottery can confirm that the ticket holders have been in touch to make arrangements to collect their prize money."
Store manager Ken O'Toole has told 98FM News there was huge excitement amongst staff when they found out.
"We got a call at around 9am from the National Lottery to say we'd sold the winning ticket. And obviously the excitement went around all colleagues, and then all the syndicates were checking their tickets, and when they didn't win, they went to the customers."