The euro reversed early gains against the dollar on Thursday, slipping into negative territory with traders citing profit taking following the single currency's gains earlier in the day.
The euro fell to around $1.3250 by 1116 GMT, relinquishing a climb as high as around $1.3384 in early trade.
The dollar index .DXY, which tracks the U.S. currency's moves against a basket of other currencies, traded largely flat around 84.560, pulling away from a three-week low of 83.885 earlier in the day.
Traders said the market may have got ahead of itself in dumping the dollar in early trade, adding that movements were volatile due to month-end flows.
Others said that the euro's reversal was triggered by selling by real-money investors.
