Japanese Foreign Minister Taro Kono conveyed serious concern over Myanmar's Rohingya Muslims to the country's leader, Aung San Suu Kyi, in a meeting on Friday in the capital Naypyidaw, Japan's Kyodo news agency reported.

Separately, the Japanese government announced emergency grant aid of 330 million yen ($2.97 million) to Myanmar to help members of the minority who return to Myanmar from Bangladesh.

Myanmar's army launched a sweeping offensive in the north of the western state of Rakhine in response to Rohingya militant attacks on August 25, triggering an exodus of more than 650,000 Rohingya villagers to Bangladesh.