TOKYO, Jan 16 - Japanese Finance Minister Sadakazu Tanigaki said on Friday he would not comment on suspected intervention in the currency market. "I will not answer," he told reporters when asked to confirm whether Japanese authorities had intervened to curb the yen's rise against the dollar after the yen rose to a three-year high of 105.70 late on Friday before quickly rebounding to around 106. He repeated that the Finance Ministry's stance was unchanged. Tanigaki said earlier on Friday that authorities would take decisive action if exchange rates overshot.//