LONDON, June 8 (Reuters) - Sony has become the first World Cup sponsor to call for a probe into accusations that bribes were paid to secure the 2022 tournament for Qatar, raising the stakes for football chiefs who have threatened to move the cup if the allegations are proved to be true.
Soccer's governing body FIFA is conducting an internal investigation into the decisions to hold the 2018 World Cup in Russia and the 2022 Cup in Qatar.
Qatar's bid in particular has attracted controversy from the outset because of the extreme summer heat during the months when the cup is played and the tiny country's lack of domestic soccer tradition.
Britain's Sunday Times newspaper has printed what it says are leaked documents showing bribes were paid to secure the event for Qatar, which Qatar denies. A former U.S. prosecutor leading FIFA's internal investigation is due to report in July, around a week after this year's World Cup finishes in Brazil.
The Sunday Times printed new accusations on Sunday, just days before the 2014 tournament kicks-off in Brazil, alleging that then-Asian football chief Mohamed Bin Hammam, a Qatari, had brokered meetings between Qatari officials and governments to discuss bilateral trade deals.
Qatar denies Bin Hammam was connected to its bid for the Cup. Bin Hammam has not commented. FIFA has already banned Bin Hammam for life from soccer over accusations he paid bribes to win votes for a bid to become FIFA president. That ban was overturned but another was imposed for conflicts of interest.
Until now, FIFA's sponsors have stayed silent. The Sunday Times quoted a Sony statement as saying: "As a FIFA partner, we expect these allegations to be investigated appropriately."
"We continue to expect FIFA to adhere to its principles of integrity ethics and fair play across all aspects of its operations," the statement added.
FIFA earned almost $1.4 billion last year, including more than $600 million from broadcasting rights and over $400 million from sponsors and other marketing partners.
Sony is one of six main FIFA sponsors who collectively paid around $180 million last year. Sony's sponsorship agreement expires this year, giving it particular leverage as it negotiates a new deal. (Reporting by Peter Graff,; Additional reporting by Keith Weir, Editing by Angus MacSwan)