Japanese shares ended the trading Wednesday lower as sentiment here was hit by the hydrogen bomb test conducted by North Korea and by the yen's advance against the US dollar.
The 225-issue Nikkei Stock Average shed 182.68 points, or 0.99 percent, from Tuesday at 18,191.32, a roughly 11-week closing low, Xinhua reported.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange was down 15.87 points, or 1.05 percent, to 1,488.84.
The decliners were led by oil and coal products, mining and miscellaneous products sessions.
The turnover was about 2,430.7 billion yen ($20.48 billion).