A ticket bought in Ireland has won the €175 million EuroMillions jackpot, the biggest in the country's history.
The winning numbers were 1, 8, 18, 19 and 39. The Lucky Stars were 7 and 9.
In January, a couple from Northern Ireland won nearly £115 million in the EuroMillions jackpot.
Frances and Patrick Connolly, from Moira won the mega EuroMillions jackpot on New Year's Day.
The winning ticket, which was a lucky dip, made them the fourth biggest winners in UK lottery history.
Speaking about the latest lottery win, National Lottery chief executive Dermot Griffin said the shop in Ireland where the ticket was bought would not be revealed for a few days as procedures had to followed.
He said:"We are advising our players to check their tickets and if they are the winner sign the back of the ticket, keep it safe, and contact National Lottery HQ and we will guide you through the claims process.
"Whilst this is a massive win it can come as a shock to a player and we advise them to stay calm, get good independent legal and financial advice and contact us as soon as they can" he added.
The EuroMillions jackpot had rolled over for several weeks and nearly reached the maximum payout of £165 million.