London's winning bid to stage the 2012 Olympics breached the rules, Paris mayor Betrand Delanoe said on Monday.

Also Read How London won one of closest Olympic votes Did London win or Paris lose the 2012 Olympics?

Delanoe, president of the Paris bid, said London had not respected the rule of the International Olympic Committee (IOC) stating that meetings between bid officials and IOC members should be only informal.

• France stunned and confused

"The IOC knows that (Prime Minister) Tony Blair had written to IOC members to offer to meet them," Delanoe told reporters.

Delanoe said that Blair had then met IOC members in his hotel suite in Singapore before Wednesday's vote, in which London scored a narrow victory over Paris.

• France cries foul over London's bid

"Everybody was aware of it and could see it," Delanoe said.

"That's against the rules. I saw people coming out of Blair's suite."