Tokyo  - Japan's benchmark Nikkei 225 Stock Average hit a three-month low Tuesday amid worries over US automakers' restructuring plans, which are to be submitted to Congress later in the day in Washington.

The Nikkei dropped to 7,637.49, down 112.68 points, or 1.45 per cent, from the previous day's close.

The broader Topix index of all first-section issues was down 11.9 points, or 1.55 per cent, to 758.2.

On currency markets at 9 am (0000 GMT), the dollar traded at 91.70-75 yen, up from Monday's 5 pm quote of 91.56-58 yen.

The euro was quoted at 1.2794-99 dollars, up from Monday's 5 pm quote of 1.2749-51 dollars, and at 117.38-43 yen, up from 116.73-77 yen. (dpa)