More than a dozen banks have been named in the US Department of Justice's investigation into more than $150m in bribes.
"Part of our investigation will look at the conduct of the financial institutions to see whether they were cognizant of the fact they were helping launder these bribe payments," Kelly T Currie, acting U.S. Attorney for the Eastern District of New York, said at a news conference.
"It's too early to say if there is any problematic behavior, but it will be part of our investigation," he said.
Ex CONCACAF president Jack Warner was arrested yesterday in his native Trinidad as part of the ongoing investigation into Fifa corruption
The former FIFA vice-president Warner was indicted in a US Department of Justice investigation, which alleges he solicited $10m in bribes from the South African government to host the 2010 World Cup.
This was the scene as he handed himself into police yesterday.
Six of the Fifa officials who were arrested on corruption charges in Switzerland yesterday will contest their extradition to the US, according to the Swiss Federal Office of Justice.
The FOJ says it will now have to ask American authorities to submit formal extradition requests within 40 days, in accordance with their bilateral treaty.
Extradition proceedings will be resumed as soon as these requests have been received, but the six men can still agree to "simplified extradition".
The seventh official, who has not been named, has indicated that they might be willing to be handed over.
FA chairman has Greg Dyke has said that corruption allegations and arrests of Fifa officials should mean the "end" for its president.
Mr Dyke told ITV News: "The truth is you cannot rebuild trust in Fifa while Sepp Blatter is there. Yes it should be the end for Sepp Blatter."
The former Fifa vice president Jack Warner turned himself over to police in Trinidad and Tobago, shortly after they issued an arrest warrant at the request of authorities in the US, where he was one of 14 people linked to international soccer indicted on corruption charges.
Warner appeared in court, where a judge read 12 charges against him and then granted him $2.5 million bail on certain conditions, including that he surrender his passport and report to police twice a week. Warner did not enter a plea and is scheduled to appear in court again on July 12.
The attorney general's office in Trinidad and Tobago said it had been working with the US Justice Department for about a year regarding the investigation of Warner, who was forced out of Fifa in 2011 over a bribery scandal.
Worcester have secured a rapid-fire Aviva Premiership return after a thrilling climax to the Championship final second leg at Sixways.
Full-back Chris Pennell's try with just 25 seconds left, followed by a Ryan Lamb conversion with the game's final kick, secured a remarkable 30-30 draw and saw Warriors return to rugby union's top table with a 59-58 win on aggregate.
For Bristol, it was a case of play-off promotion agony for a fourth time since 2009, and they will remain in the Championship for at least another season as Worcester began wild celebrations to mark a Premiership reappearance just 12 months after they were relegated.
Sevilla have won the Europa League, beating Dnipro 3-2 in Warsaw.
Colombian striker Carlos Bacca scored twice for the Andalusians, in addition to Grzegorz Krychowiak's strike.
Dnipro had taken the lead through Nikola Kalinic, before Sevilla struck twice.
Ruslan Rotan equalised just before half-time for the Ukrainians, but Bacca struck in the second-half to win the trophy for Sevilla.
Former Newcastle and Spurs star midfielder David Ginola said "of course" England should have been treated better given the quality of the 2018 World Cup bid. He told ITV News that he felt "very awkward" when the bid failed after receiving just a single vote.
Nike has said that it 'strongly opposes any manipulation or bribery' after Fifa officials were accused of bribery and corruption over two decades.
Like fans everywhere we care passionately about the game and are concerned by the very serious allegations. Nike believes in ethical and fair play in both business and sport and strongly opposes any form of manipulation or bribery.
We have been cooperating, and will continue to cooperate, with the authorities.
Coca-Cola has issued a statement saying that "Controversy has tarnished the ideals of Fifa'' after officials were among those arrested this morning.
This lengthy controversy has tarnished the mission and ideals of the FIFA World Cup and we have repeatedly expressed our concerns about these serious allegations.
We expect FIFA to continue to address these issues thoroughly. FIFA has stated that it is responding to all requests for information and we are confident it will continue to cooperate fully with the authorities.