Bank of Japan Governor Haruhiko Kuroda said the central bank can deliver more monetary stimulus if necessary.

The BOJ will ease further if the momentum towards its 2% inflation target is lost, Kuroda said in Fukuoka, Japan, where central bankers and finance chiefs from the Group of 20 met over the weekend.

Kuroda, however, said the BOJ did not need to act now, citing the health of the economy.

Asked if the BOJ still had the capacity to do "something big," Kuroda said: "I think so."

The options would be cutting the -0.1% negative rate further, lowering the target for 10-year yields, increasing the monetary base, or boosting asset purchases, he was quoted as saying.