TOKYO (AP) _ Tokyo stocks fell Friday on profit-taking after three sessions of gains. The dollar was lower against the yen.

The benchmark 225-issue Nikkei Stock Average lost 157.23 points, or 1.27 percent, to end the week at 12,241.97. On Thursday, the average rose 439.87 points, or 3.68 percent.

The dollar bought 123.84 yen at 5 p.m. (4 a.m. EDT), down 0.42 yen from late Thursday in Tokyo but above its late New York level of 123.78 yen overnight.

On the stock market, the Nikkei index fell from the beginning of the day as players moved to take profits from Thursday's rally. Traders said buying and selling were both limited to small lots as market participants avoided taking out big positions ahead of the weekend.

The broader Tokyo Stock Price Index of all issues listed on the first section was down 15.34 points, or 1.24 percent, to 1,219.92. The TOPIX gained 28.41 points, or 2.35 percent, the day before.

Volume on the first section was estimated at 606.41 million shares, down from 783.88 million shares Thursday. Decliners outnumbered gainers 970 to 360, with 137 closing unchanged.

In currency dealings, the dollar slipped after investors bought back yen sold earlier in the week on worries over Japan's economy.

After Prime Minister Junichiro Koizumi's ruling party swept key parliamentary elections Sunday, investors worried that Koizumi's reform plans could result in higher unemployment rates and weakened consumer spending had sold the yen.

The U.S. currency ranged from 123.50 yen to 124.02 yen Friday.

The euro was traded at 109.10 yen, down from 109.56 yen late Thursday in Tokyo.

The yield on the benchmark 10-year Japanese government bond rose to 1.3600 percent from Thursday's finish of 1.3400 percent. Its price fell 0.18 point to 100.34.