UEFA will not boycott Friday's FIFA congress ahead of plans to unite behind FIFA presidential candidate Prince Ali Bin Al Hussein.

UEFA president Michel Platini has also not ruled out the possibility of a World Cup boycott by UEFA members if Sepp Blatter is re-elected as FIFA president.

The European football body had called for Friday's congress, when voting for the FIFA presidential election will take place, to be postponed after Swiss authorities arrested several top FIFA officials on Wednesday relating to federal corruption charges.

Current president Sepp Blatter -- who is seeking a fifth four-year term in Friday's election -- called together leaders of FIFA's six regions on Thursday.

Platini spoke privately with Blatter on Thursday morning and urged him to quit, but the Swiss refused.

Platini added at a news conference on Thursday that a large majority of UEFA member nations will vote for Prince Ali and admitted that, if the 79-year-old Blatter were to win a fifth term in office, UEFA would have some tough decisions to make when its members meet again in Berlin next week before the Champions League final.

Asked if a boycott of FIFA competitions was a possibility, Platini said: "UEFA associations will meet in Berlin next week. We will be open to all options."

Pressed further on the prospect of a World Cup boycott, Platini added: "There may be proposals. I honestly don't wish that."