The U.S. dollar fell across the board and the Japanese yen jumped to a more than two-month high on Monday as speculation mounted about joint U.S.-Japan currency intervention after remarks from Tokyo's prime minister and Japan's leading currency diplomat.

NEW YORK, Jan 28 (Reuters) - The U.S. dollar held gains against the euro and the yen on Wednesday after the U.S. Federal Reserve kept interest rates steady, citing still-elevated inflation alongside solid economic growth,

The U.S. dollar extended losses to sink to a four-year low against a basket of currencies on Tuesday. The weakness was exacerbated by President Donald Trump saying the dollar's value was "great", when asked whether he thought it had declined too much.