U.S. labor data weigh on dollar, Treasury yields

The dollar fell and benchmark U.S. Treasury yields touched multi-week lows on Friday as an unexpectedly weak government reading of American labor costs dulled prospects for higher U.S. interest rates. Wall Street stock prices closed down, after surrendering early gains from the Employment Cost Index data showing the smallest quarterly increase in 33 years. Oil prices declined by 2 to 3 percent on growing worries about global oversupply.