The Bank of Japan will maintain its ultra-easy monetary policy until the threat of deflation is gone, BOJ Gov. Masaru Hayami reiterated Monday.

The central bank chief made the remark during his opening address at a quarterly meeting of managers from the BOJ's 33 branches nationwide, as well as representatives from its offices in London, New York and Hong Kong.

The BOJ, amid mounting calls to curtail the rise in long-term interest rates, decided in mid-February to guide down the unsecured overnight call money rate, from 0.25 percent to near zero, to further relax its money supply.