Bank of Japan (BoJ) Governor Haruhiko Kuroda said in an interview with the Wall Street Journal over weekend that a stronger yen could weigh on inflation and could lead to further stimulus measures by the central bank.

"If excessive appreciation continues, that could affect not just actual inflation, but even the trend in inflation through its impact on business confidence, business activity, and even through inflation expectations," he said.

Kuroda pointed out that the exchange rate of the yen was the target of the BoJ's monetary policy, adding that the BoJ continued to closely monitor exchange-rate movements.

BoJ governor reiterated that the central bank would add further stimulus measures if needed to reach 2% inflation target.

Kuroda noted that there was room for further cut in interest rates, technically and theoretically speaking.