Tokyo  - Tokyo stocks lost early gains at the end of morning trading Tuesday on renewed uncertainties over the US economy.

The Nikkei 225 Stock Average lost 8.29 points, or 0.06 per cent, to 14,173.09.

The broader Topix index of all first-section issues was slightly down 0.19 points, or 0.01 per cent, at 1,397.35.

Stocks opened higher Tuesday on Japan's April core machinery orders data that came out stronger than expected.

Core private-sector machinery orders rose 5.5 per cent in April in seasonally adjusted terms from the previous month to 1.01 trillion yen (9.58 billion dollars), better than the average market expectation of a 2.7-per-cent rise, the government said Tuesday.

But the market lost its momentum on renewed uncertainties over the US economy.

On currency markets at 9 am (0000 GMT), the dollar traded at 106.28-33 yen, up from Monday's 5 pm quote of 105.23-25 yen.

The euro was quoted at 1.5645-50 dollars, down from Monday's 5 pm quote of 1.5826-28 dollars, and at 166.34-39 yen, down from 166.54-58 yen. (dpa)