A UK ticket-holder has scooped a £63.8m share of last night's EuroMillions jackpot, a National Lottery spokeswoman said.
The winning numbers in the EuroMillions draw were 5, 11, 22, 34 and 40. The Lucky Star numbers were 9 and 11.
The haul puts the lucky winner on a par with other multi-million-pound jackpot winners including Colin and Chris Weir, from Largs in North Ayrshire, who won £161 million last July.
Other big winners include a ticket-holder who banked £113,019,926 in October 2010 but decided not to go public, and Dave Dawes and wife Angela, from Wisbech, Cambridgeshire, who claimed £101,203,600 last October.
The massive pot came about because of a double-rollover - last Friday six people won £266,505.80 each after matching five main numbers and one lucky star, but no-one matched all seven to claim the £106 million jackpot.
The spokeswoman said: "Lady Luck is clearly shining down on the UK once again with another big EuroMillions win this year - the sixth jackpot win this year.
"We're absolutely delighted that a UK ticket-holder has scooped a £63.8 million share of this massive jackpot, alongside one ticket-holder in Belgium.
"We've got the champagne on ice and look forward to welcoming the ticket-holder into the National Lottery millionaires' club."
The exact amount won by the UK ticket-holder was £63,837,543.60.