"Oh. My. God." was the response of 20-year-old Shane Missler on Facebook after he bagged a $451m (£328m) Mega Millions lottery jackpot.

Instead of taking the full prize across several payments over a period of time, the Florida resident opted to receive a one-time payment of almost $282m (£205m).

Lottery officials said the win came after the man, from Port Richey, had five winning numbers and a mega ball number drawn on 5 January.

Florida Lottery said it was the fourth largest Mega Millions win in history.

Since his win, Mr Missler posted a photo of a book by businessman Gary Vaynerchuk he appeared to be reading, and added: Young entrepreneur in the making.

He later tweeted: The power of positive thinking should not be underestimated!

The winner told Lottery organisers he believed in the power of a positive mindset and that he was not surprised he had won. He said he had a feeling that he might.

His brother was the first person he called after receiving the news. He later told his father the following morning over a coffee.

Mr Missler said: I’m only 20, but I hope to use it to pursue a variety of passions, help my family and do some good for humanity.

The man, who worked as a verification specialist at a background screening firm – according to his Facebook – told the Tampa Bay Times he was going to take care of his family.

Although I’m young, I’ve had a crash course this week in financial management and I feel so fortunate to have this incredible wealth and team behind me, he said.

I intend to take care of my family, have some fun along the way and cement a path for financial success so that I can leave a legacy far into the future.

(c) Sky News 2018: Florida man Shane Missler, 20, who won $451m jackpot to ‘do good for humanity’