After the as-yet unnamed man came forward to collect his winnings, a National Lottery spokesman said:
"We're delighted Friday's ticket-holder has come forward to claim this amazing prize. This massive win ranks fourth biggest on the National Lottery Rich list and is the first EuroMillions jackpot to be won here in the UK so far this year."
The winner will be unveiled at Wotton House in Dorking this morning.
More top news
The family of Oliver Dearlove urged people to "think again" before using their fists, as the man who killed him began a six-year jail term.
London Fire Brigade took Southwark Council to court on four charges in relation to safety breaches at Lakanal House in Camberwell.
Oliver Dearlove died 24 hours after receiving the fatal blow outside Morden's wine bar in Blackheath last summer.