Investing.com - The dollar slipped lower against other major counterparts on Wednesday, as investors remained cautious ahead of the Federal Reserve's policy statement due later in the day and amid fresh geopolitical concerns.
EUR/USD added 0.12% to a one-week high of 1.2010.
Sentiment on the greenback remained fragile as investors awaited the outcome of the Fed's monthly policy meeting.
The U.S. central bank was widely expected to leave interest rates on hold, but it was also likely to announce plans to trim its $4.2 trillion in bond holdings.
The safe-haven yen and Swiss franc, with USD/JPY down 0.21% at 111.35 and with USD/CHF shedding 0.24% to 0.9604.
Traders were also cautious amid potentially higher tensions between the U.S. and North Korea following hawkish statements from U.S. President Donald Trump.
In his first speech before the United Nations General Assembly on Tuesday, Trump said "the United States has great strength and patience, but if it is forced to defend itself and its allies, we will have no choice but to totally destroy North Korea."
Elsewhere, GBP/USD edged 0.18% higher to 1.3525, off Monday's 15-month peak of 1.3619.
The New Zealand dollar was stronger, as NZD/USD climbed 0.77% to a six-week high of 0.7370 after official data earlier showed that New Zealand's current account surplus swung into a deficit of NZ$620,000 in the second quarter from a surplus of NZ$240,000 in the previous quarter.
Analysts were expected a current account deficit of NZ$880,000 in the last quarter.
The U.S. dollar index, which measures the greenback’s strength against a trade-weighted basket of six major currencies, was down 0.12% at 91.51 by 02:15 a.m. ET (06:15 GMT),the lowest since September 11.