Please summarize the following text with at most 1024 letters: Prosecutors accuse Fifa president NAME_1 of making a "disloyal payment" of 2m dollar to NAME_2. NAME_2 has provided information to the investigation but said he did so as a witness. Both men deny any wrongdoing. NAME_2 has said he is still determined to run for Fifa president once NAME_3 steps down. Asked whether criminal proceedings had been opened against him, NAME_2 said: "Absolutely not. I was heard last week by the Swiss Authorities only as a person providing information and I cooperated fully." But this was contradicted by the Swiss attorney general, NAME_4, who said: "We didn't interview NAME_2 as a witness, that's not true. We investigated against him in between as a witness and an accused person." NAME_5 also said he was prepared to search the Uefa headquarters as part of the investigation. The allegations centre on a payment made to NAME_2 in 2011 at Fifa's expense for work he completed almost a decade earlier. It came just two months before Uefa gave its backing to NAME_6's 2011 presidential campaign, leading some to question the timing of it. NAME_2 said he was told when starting the work that Fifa would not be able to pay him all the money because of its "financial situation". But Fifa accounts show a revenue surplus of around $83m (355m) from 1999-2002, when NAME_2 undertook the work as a technical adviser. Fifa was thrown into turmoil this year when the US and Swiss authorities launched separate investigations into corruption at the body. NAME_3 is also suspected of signing a contract that was "unfavourable to Fifa". He is due to stand down next year, but says he will carry on in the role despite the criminal proceedings. Make sure to only use capital letters in your entire response.
user