Denis Oswald, who heads the IOC's coordination commission for London, praised the financial situation.
"It's very rare that the investment budget made by the city and the government remains what it was at the beginning," he said. "In most cases there has been an increase."
Asked if he had any message for London organizers going into the final months, Rogge said: "Keep focused. No complacency. Your job will be over at the closing ceremony of the Paralympics, not before."
"They will deliver," he said. "I have no doubt about that."
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