The dollar rose to one-week highs on Friday, for a fourth straight session of gains, on rate-hike remarks by a senior Fed official and generally positive U.S. data that supported the notion the world's largest economy was on a stable growth path.
The dollar index, a gauge of the greenback's value against six major currencies, bounced back from seven-month lows struck on Monday and was on track for its largest weekly gain in a month as financial markets calmed down after recent turmoil.
The index extended gains after Federal Reserve Vice Chair Stanley Fischer said the U.S. central bank can't wait for the case on hiking interest rates to be overwhelming. But he was undecided whether to raise rates in September.
Data released earlier showed U.S. consumer spending picked up 0.3 percent in July as households bought more automobiles, although U.S. consumer sentiment dipped a bit in August amid the global stock market turmoil.