The dollar firmed on Friday, boosted by increased expectations of monetary easing by central banks in Europe and Japan, and by strong U.S. housing data.
The dollar touched a two-week high against the yen, which has risen nearly 3 percent versus the greenback this year as the sell-off in oil and global equity markets has pushed traders to seek out the safe-haven currency.
The dollar rose 0.81 percent to 118.72 yen.
The euro briefly fell below $1.08 to the dollar for the second time in as many days, nearing a two-week low. The euro zone common currency was last down 0.45 percent to $1.08.