The Rupee was trading 15 paise down at 66.88 against the US Dollar in late morning trade on Thursday.

Higher demand for the American currency from importers and banks and lower opening of the domestic equity markets pushed the domestic currency in the negative zone.

The Rupee had closed 12 paise higher at 66.72 against the US Dollar on Wednesday.

Meanwhile, the benchmark index Sensex was trading 26 points higher at 27,801 at 10.45 am.