The 225-issue Nikkei Stock Average dropped 83.61 points, or 0.31 percent, from Monday to 26,648.83.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, fell 8.65 points, or 0.48 percent, at 1,781.87.
Air transportation, insurance and marine transportation-oriented issues comprised those that declined the most by the morning break.
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