A British soldier has become an overnight multimillionaire after scooping more than £13.2 million on a 25p stake.

Afghanistan veteran Jon Heywood placed a bet online and said winning the huge sum "hasn't sunk in".

The 26-year-old's win is set to become a world record for the largest jackpot payout in an online slot machine game, beating the previous landmark of €17.8 million (£13.1m) set in Finland in 2013.

Mr Heywood, from Cheshire, vowed the first thing he will buy is the "best possible medical treatment" for his father who is awaiting a heart and lung transplant.

He also plans to treat himself and upgrade his Fiat Punto to a luxury Bentley Continental GT.

Mr Heywood celebrates his win. Credit: PA

Mr Heywood, whose grandfather died this year, said: "I couldn't believe that I'd won all this money at the time - and it still hasn't sunk in.

"It's amazing. The first thing I will spend it on is the best possible medical treatment for my dad. That's more important than anything.

"Family comes first and I'd give all this money back for him to be healthy again."

Mr Heywood also plans to pay for his relatives to go on a Mediterranean cruise.

The Formula 1 fan added: "I'm trying not to get carried away and I really don't know what else I'm going to buy with the money, apart from a yellow Bentley Continental GT.

"I never even dreamed of driving a Bentley, let alone owning one. I've got a Fiat Punto at the moment."

He won the huge prize on Betway.com while playing Microgaming's Mega Moolah game late on October 6, but had to keep the win quiet for three days and even went to work the following day.