Continuing its weakness for the fourth straight day, the Indian rupee today depreciated by another 28 paise to an one-week low against the greenback in early trade on increased dollar demand from refiners and a widening trade deficit.

At the Interbank Foreign Exchange (Forex) market, the domestic currency traded lower at 49.04 against the US currency, a fall of 27 paise over the previous close of 48.76/78 a dollar amid absence of any cues from global markets due to new year holidays.