FOREX-Dollar holds fast, yen in shaky territory ahead of FOMC

The dollar remained firm against a basket of peers on Wednesday ahead of a much-anticipated rate decision by the Federal Reserve later in the day, while the yen continued to hang close to a 10-month low. The U.S. dollar index, which measures the greenback against a basket of rivals, stayed mostly flat at 105.17 as traders awaited the Fed's rate decision. Attention stayed fixed on the yen as U.S. and Japanese authorities heaped on fresh comments about the possibility of intervention.