ONE UK ticket-holder has won the £170 million EuroMillions jackpot to become the country's biggest ever winner - instantly making them richer than pop star Ed Sheeran.

The excitement was building so much for the blockbuster jackpot that lottery players managed to crash the website earlier this evening in the scramble to get a ticket.

The National Lottery have confirmed the lucky winner has matched all five main numbers - 07, 10, 15, 44, 49 - and the two lucky stars - 03, 12 - in Tuesday's draw.

The extraordinary haul will make the winner instantly richer than pop star Ed Sheeran, who is worth an estimated £160million, according to The Sunday Times Rich List.

It is the largest ever lottery win in the UK and beats the £161million won by Colin and Chris Weir in July 2011.

Andy Carter, Senior Winners' adviser at The National Lottery, said: "One incredibly lucky ticket-holder has scooped tonight's enormous £170 million 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 £123M 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.

"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."

Earlier this evening an error message came up on the site if you tried to access it as people eagerly tried to purchase their tickets.

Meanwhile another Brit scooped £1 million in the Millionaire Maker Selection game.

The Thunderball numbers were 13, 11, 26, 12, 29 and the Thunderball itself was 10, but no one won the top prize of £500,000.