Tokyo stocks fell 0.31 percent on Thursday morning.
The 225-issue Nikkei Stock Average was down 54.64 points, or 0. 31 percent, from Wednesday to 17,799.59.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange declined 4.12 points, or 0.29 percent, to 1, 421.90.
Major decliners included air transport, mining and utility issues.