"Unprecedented demand" for tonight's record Lotto jackpot is to blame for the sluggish performance on the National Lottery website, operator Camelot has said.
With the Lotto jackpot now standing at nearly £60 million, there are fears the website could again struggle with the surge in demand, as last-minute rush to buy tickets had crashed the lotto website ahead of the previous draw - which had no winners.
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A Camelot spokesman said: "As you can appreciate, we're seeing unprecedented demand for tickets for tonight's record-breaking Lotto draw. Tickets can also be bought at any of our 37,000 retail outlets up until 7.30pm, so there's still plenty of time for people to do that."
Meanwhile Barclays' Pingit app, which has a built-in function to purchase National Lottery tickets, has also been affected by Lotto website's outage.