The Bank of Japan's goal is to sustain economic growth, just like the politicians who are decrying any suggested attempt by the central bank to end its ultraloose monetary policy, BOJ Gov. Toshihiko Fukui said Friday.

"There is no difference in perception between the government, the ruling coalition and the BOJ that the most important point is to strive for sustainable growth under stable prices," Fukui told a regular news conference after the end of the BOJ Policy Board's two-day meeting.

Earlier in the day, the board agreed to leave the monetary stance unchanged. The policy drives overnight rates to zero by flooding the market with excess liquidity, and boosts banks' reserves at the BOJ far above the required level.