The winning ticket for Tuesday's €88.5m Euromillions jackpot was sold in the Applegreen service station on the M1 northbound in Lusk, Co Dublin.
The ticket holders have been in contact with the National Lottery and have 90 days from the date of the draw to claim the prize, which is the tenth Euromillions jackpot win in Ireland.
It is still not known if a syndicate or individual won the jackpot. The National Lottery has said that it can only say it was won by "ticket holders".
National Lottery Chief Executive Dermot Griffin said the funds for the prize will not be transferred from the other countries that play the game until next Wednesday.
"While the jackpot will be available from next Wednesday, [the winners] have 90 days to decide when they want to come in and collect it."
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Speaking on RTÉ's Morning Ireland, Mr Griffin said they have advised the winners to take their time and consult with their financial advisers - and also to keep the ticket in "a safe place".
"Naturally there's been great excitement and great interest in this win. It's the third biggest Irish Euromillions win."
Staff at the Applegreen petrol station, where the ticket was bought, have said they do not know who won the jackpot.
Petrol and diesel were discounted to 88.5 cent a litre to honour the jackpot today for four hours.
This afternoon no fuel was available for over an hour because of a technical difficulty.
