The Japanese government will provide more than five million dollars to Bangladesh to help Rohingya refugees.
Rohingya Muslims fled to Bangladesh after Myanmar's security forces began an operation targeting Rohingya militants in the country's Rakhine state in August 2017.
Japan's Foreign Ministry will provide 5.1 million dollars in grant aid through the UN World Food Programme.
The ministry says more than half of the Rohingya refugees are suffering from life-threatening malnutrition.
The money will be used to help farmers grow beans for the refugees.
Foreign Minister Taro Kono has expressed his eagerness to help resolve the Rohingya refugee issue. The ministry says it will continue its efforts to improve their living conditions and help them return to Myanmar.