As of 9:15 a.m., the 225-issue Nikkei Stock Average dropped 267.14 points, or 1.37 percent, from Wednesday to 19,282.95.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 17.79 points, or 1.24 percent, at 1,416.28.
Nonferrous metal, transportation equipment and real estate issues comprised those that declined the most in the opening minutes after the morning bell.
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