The Japanese yen staged a sharp rise against its major counterparts at 2:30 am Eastern time Friday. The yen thus climbed to 99.45 against the US dollar, 145.81 versus the British pound, 133.25 against the European currency and 87.34 versus the Swiss franc, compared to Thursday's closing value of 99.54, 146.60, 134.01 and 87.80 respectively.

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