Tokyo shares ended the trading Monday sharply lower with its benchmark Nikkei index tumbling over 3 percent on a firmer yen amid concerns about Britain's referendum over its membership of the European Union later this month.
The 225-issue Nikkei Stock Average plunged 582.18 points, or 3. 51 percent, from Friday at 16,019.18.
The broader Topix index of all First Section issues on the Tokyo Stock Exchange finished 46.18 points, or 3.47 percent, lower at 1,284.54.
All issues on the main section lost ground and were led by mining, iron and steel as well as financial stock issues.
The day's turnover was about 1,851.8 billion yen (about 17.47 billion U.S. dollars).
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