The fact that the win’s currency is in GBP suggests that the player in question may be coming from the UK.
No other details were given about the winner, except that the massive win was achieved at the group's Blackjack Ballroom online casino.
The group spokesperson stated: “We are blown away by last night‘s GBP 5.8 million win! It‘s even bigger than K.E.‘s $5.5 million win at Blackjack Ballroom.
"We‘ve seen a massive increase in play on over the past few many months while the jackpot was high, which all contributed to it getting even bigger … GBP 5.8 million is the biggest progressive jackpot pay-out we‘ve ever seen!“