Latest developments following the launching of criminal proceedings against FIFA officials in separate U.S. and Swiss corruption probes.

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1131 a.m.

FIFA spokesman Walter de Gregorio told a hastily convened news conference in Zurich that FIFA's presidential election will take place as planned on Friday. Sepp Blatter is running for a fifth term. De Gregorio also ruled out any revote for the 2018 and 2022 World Cups won by Russia and Qatar.

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1130 a.m.

Swiss federal prosecutors have opened criminal proceedings related to the awarding of the 2018 and 2022 World Cups, throwing FIFA deeper into crisis only hours after six soccer officials were arrested in a separate U.S. corruption probe.

The Swiss prosecutors' office said in a statement they seized "electronic data and documents" at FIFA's headquarters on Wednesday as part of their probe. And Swiss police said they will question 10 FIFA executive committee members who took part in the World Cup votes in December 2010.

The Swiss investigation against "persons unknown on suspicion of criminal mismanagement and of money laundering" again throws into the doubt the integrity of the voting to award Russia the 2018 World Cup and the 2022 tournament to Qatar.

The announcement came only hours after six soccer officials were arrested and detained by Swiss police pending extradition at the request of U.S. authorities after a raid at a luxury hotel in Zurich. FIFA President Sepp Blatter was not among them.

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