The USD/JPY exchange rate rally has stalled in the past few weeks, helped by the robust Bank of Japan (BoJ) interventions. The pair, which peaked at 160.26 in May, has tumbled to about 155.56 as focus shifts to the Fed and BoJ actions.

Japanese authorities spent 9.79 trillion yen ($62.23 billion)intervening in the foreign exchange market to support the yen over the past month, in moves that kept the currency from testing new lows but are unlikely to reverse longer-term declines.

Japanese officials admitted on Friday that it pumped $62 billion in yen over the past month to slow its dramatic fall against the U.S. dollar, confirming the government's involvement in the market.

Japan spent 9.789 trillion $62.42 billion on currency intervention between April 26 and May 29, Finance Ministry data showed Friday.

Japan will release closely watched data on Friday that shows how much it spent intervening in the foreign exchange market to prop up the yen in May, in moves that kept the currency from testing new lows but are unlikely to reverse longer-term declines.