Swiss investigators are expected to probe why Australia's $46 million bid to host the cup received just one vote in an allegedly shady process unexpectedly won by Qatar.
Investigators raided the head offices of FIFA, the world governing body, on Wednesday (Thursday AEST) in a new probe into the hosting process for the 2018 and 2022 World Cups.
The raid came as seven high-ranking FIFA executives were arrested at the United States' behest at a luxury Zurich hotel.
The seven are among 14 people, including one with dubious connections to Australia's failed bid, charged with racketeering, wire fraud and money laundering conspiracies.
The US is seeking their extradition to face charges they conspired to solicit and receive more than $US150 million ($194 million) in bribes and kickbacks, in exchange for their support of marketing executives who agreed to make the illegal payments.
US authorities say the 14 people charged face up to 20 years in jail if found guilty.
Nine of the 14 have direct links with FIFA, including Jack Warner, who is central to corruption allegations regarding Australia's unsuccessful bid. The others include sports marketers and a broadcast executive.
Warner, a former FIFA vice-president from Trinidad and Tobago, appeared in a Port of Spain court on Wednesday (Thursday AEST) facing eight corruption charges, local media reported.
Warner has denied any wrongdoing but two of his sons have pleaded guilty to charges related to the investigation into bribery and kickbacks involving FIFA officials and sports marketing firms.
Australia paid Warner $500,000 in 2010 - funds meant for stadium upgrades which he allegedly stole after they were deposited in his personal bank account.
The dramatic arrests in Zurich and elsewhere come on the eve of a FIFA congress where Sepp Blatter is standing for a fifth term as the organisation's president.
Football Federation Australia chief executive David Gallop was in Zurich, awaiting the arrival of FFA chairman Frank Lowy later Thursday Australian time.
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FFA reviewing FIFA allegations
"The Australian delegation will review the developments involving Swiss and US law enforcement authorities over the conduct of FIFA officials," the FFA said in a statement.
Lowy will arrive in Zurich amid calls for Blatter to step down, and for the congress and presidential vote slated for Friday (European time) to be postponed.
"These events show, once again, that corruption is deeply rooted in FIFA's culture," a statement from the European governing body UEFA read.
English Football Association chairman Greg Dyke said Blatter must go.
"There is no way of rebuilding trust in FIFA while Sepp Blatter is still there ... he either has to go through a resignation, or he has to be out-voted, or we have to find a third way," Dyke said.
Blatter, in a statement, said the developments were concerning but gave no indication he would the heed the calls to quit.
"This is a difficult time for football, the fans and for FIFA as an organisation," Blatter said.
"We understand the disappointment that many have expressed and I know that the events of today will impact the way in which many people view us."
The Asian Football Confederation, which Australia is part of, said it still supported Blatter's bid to retain the presidency.
"The Asian Football Confederation expresses its disappointment and sadness at Wednesday's events in Zurich whilst opposing any delay in the FIFA Presidential elections to take place on Friday May 29 in Zurich," an AFC statement read.
"The AFC is against any form of corruption in football and fully supports any actions taken by the independent FIFA Ethics Committee where wrongdoing may have occurred, whether such actions affect Asian officials or otherwise.
"The AFC is still undergoing its own process of reform and has taken many concrete steps in the last two years to improve governance in the Confederation, whilst recognising that there is still much work to do.
"Furthermore, the AFC reiterates its decision taken at the AFC Congress in Sao Paulo in 2014, endorsed at subsequent Congresses in Melbourne and Manama in 2015, to support FIFA President Joseph S. Blatter."
