TOKYO :Japanese Finance Minister Satsuki Katayama on Tuesday expressed concern over recent foreign exchange movements, as the yen sank to fresh nine-month lows versus the dollar. "As we have recently been seeing one-sided, rapid moves in the foreign exchange market, we have been alarmed," Katayama said at a regular news conference. "The government will thoroughly monitor for excessive fluctuations and disorderly movements in forex market, with a high sense of urgency," she said.