EuroMillions players across Britain have been urged to check their tickets this morning after one person scooped the £170m jackpot.
The player matched all five main numbers – 07, 10, 15, 44, 49 – and the two lucky stars – 03, 12 – in Tuesday's draw following the lottery’s longest ever series of rollovers - making them the UK’s biggest ever winner.
Andy Carter, senior winners' adviser at the National Lottery, said: "One incredibly lucky ticket-holder has scooped tonight's enormous £170m EuroMillions jackpot.
"They are now the UK's biggest ever winner.
"Players all across the country are urged to check their tickets as soon as possible.
"It's been a fantastic year for UK EuroMillions players, with an amazing five jackpot wins.
"In June, one lucky ticket-holder, who chose to remain anonymous, became one of the UK's biggest ever winners after scooping a £123 million jackpot.
"As always, the team are on hand to support and help guide the new winner as they start their adventure with their life-changing win.
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"Every EuroMillions ticket sold helps contribute to the more than £30 million raised every week for good causes by the National Lottery – funding everything from local community projects to supporting the nation's athletes.”
The £123m winner in June has never revealed their identity and Camelot, which runs the National Lottery and EuroMillions, would not say whether it was an individual winner or a syndicate.
The previous biggest UK winners were Colin and Chris Weir, from Largs in North Ayrshire, Scotland, who won £161m in July 2011.
Adrian and Gillian Bayford, from Suffolk, took home more than £148m in August 2012.
It has been a particularly successful year for Britons in the EuroMillions this year, with several jackpots claimed.
In the New Year's Day draw, Patrick and Frances Connolly, from Northern Ireland, won the £114.9m EuroMillions jackpot.
Ade Goodchild landed a £71m prize in March, while another anonymous ticket-holder bagged £35.2m in April.
Meanwhile, another Briton won £1m in the Millionaire Maker Selection game on Tuesday.
The Thunderball numbers were 13, 11, 26, 12, 29 and the Thunderball itself was 10, but no one won the top prize of £500k.