The dollar jumped to a four-week high today, Tuesday, supported by gains against the pound, affected by the uncertainty surrounding Britain's exit from the European Union and as investors' appetite for risk waned after a wave of sales on Wall Street.
Analysts said the dollar's gains were unlikely to last long.
The sterling fell to its lowest level in four weeks against the greenback, with a decline of 1.2 percent to $ 1.2987 in late trading session.
The euro fell 0.3 percent to $ 1.1783.
The dollar index, which measures the value of the greenback against a basket of six major currencies, rose 0.42 percent to 93.448, after hitting a four-week high of 93.483.
But the dollar found difficulty against the Japanese currency, falling 0.2 percent to 106.04 yen.
The yen's rise came despite data showing that the Japanese economy contracted 28.1 percent year on year in the second quarter of the year.
In emerging markets, the Turkish lira hit a new record low, and the Russian ruble fell to its lowest level since April, amid ongoing talks of new Western sanctions.
