The Irish winner of a 94 million euro EuroMillions prize is to keep their identity secret, for the time being.
The winning ticket - sharing the jackpot with someone in Belgium - was bought in the Dublin region, lottery chiefs said.
A spokeswoman for Ireland's National Lottery said the winner, or winners, had made contact with them.
"The ticket has been verified and the National Lottery is working with the winner(s) to progress the prize claim," she said.
It is the second largest jackpot win for Ireland and puts the lucky ticket holder 96th on the country's rich list.
There have been four jackpot wins since the EuroMillions game launched in Ireland in 2004, with Limerick woman Dolores McNamara holding the record for the largest win of more than 115 million euro in 2005.
Tuesday's 188 million euro jackpot was the second largest EuroMillions prize to date.
The winning numbers were 4, 5, 13, 27 and 35. The lucky stars were 1 and 2.
Earlier, a small commuter town outside the capital thought it was home to the new multi-millionaire after rumours spread on social media that the ticket had been bought in a local shop.
Staff at Reilly's Supervalu in Sallins, Co Kildare, were toasting supposed success early in the morning but the celebrations were dashed before 8am after lottery chiefs cleared up the confusion. "We've been told it's not us, but it was sold in Leinster," a worker said.