Japan's ruling party member Kozo Yamamoto said on Monday that the Bank of Japan (BoJ) will likely not add further stimulus measures this year as a weaker yen could hurt low-income households.

"If the U.S. Federal Reserve raises interest rates this year that could accelerate yen declines. That would hurt households," he said. Yamamoto noted that the BoJ will likely analyse effects on the yen from the possible Fed's interest rate hike.