The yen fell to a seven-year low versus the dollar on speculation Japans Prime Minister Shinzo Abe is considering postponing a planned sales-tax increase and preparing to call early elections next month.
Russias ruble fell as nations threaten to tighten sanctions, while the Swiss franc touched the strongest level versus the euro in two years. Brazils real fell for the first time in three days as re-elected President Dilma Rousseff considered the composition of her economic team. Swedens krona advanced after consumer prices fell less in October than economists forecast.
The yen depreciated 0.4 percent to 115.32 per dollar as of 3:09 p.m. New York time and touched 116.10, the weakest level since October 2007. Japans currency slid 0.9 percent to 143.91 per euro. The 18-nation common currency gained 0.5 percent to $1.2480.