At the request of the government of Bangladesh, IOM is hosting the Inter Sector Coordination Group, which is coordinating the work of aid agencies responding to the humanitarian crisis triggered by the influx.
"If, at any stage, the burmese government is open to peace, then the ARSA will be welcome and will act in reciprocity ".
This week, Bangladesh announced it would build one of the world's biggest refugee camps for the hundreds of thousands of Rohingya Muslims who had sought asylum in the country.
But UNICEF chief Anthony Lake and UN emergency relief coordinator Mark Lowcock said in an appeal for $430 million to provide aid that "the needs (of the Rohingya) are growing at a faster pace than our ability to meet them".
Rohingya, a Muslim minority, do not qualify for Myanmar citizenship even though many have lived there for generations while its army insists they are interlopers from across the border in Bangladesh.
Hard-pressed Bangladesh authorities plan to expand a refugee camp at Kutupalong near the border town of Cox's Bazar to accommodate all of the Rohingya refugees who have fled to the country.
Police find decapitated head of journalist Kim Wall
Madsen has insisted there was no sexual relationship between him and Wall, and that their contacts had been professional. They were discovered near to Kim Wall's naked, decapitated torso which was found in August in the sea off Copenhagen .
But this is disputed by Rohingya refugees, who say the military and Rakhine Buddhists are setting their villages alight to drive them out after attacks by Rohingya Muslim militants on police posts.
Rohingya refugees and rights groups have accused the army of setting the fires with the help of Buddhist vigilante mobs.
Hasina said Myanmar wanted to create a situation to divert global attention.
Bangladeshi Home Minister Asaduzzaman Khan Kamal is set to visit Myanmar this month to discuss Rohingya repatriation process.
However, Robert Watkins, the United Nations resident co-ordinator in Dhaka, said overcrowding could heighten the spread of disease, which is already a problem among the refugee population. Rights groups say the real death toll is likely to be much higher, especially among the Rohingya, while the United Nations has labelled army operations as "ethnic cleansing" against the Muslim group.
By concentrating too many people in one space, a refugee camp of such size leaves enough scope for deadly diseases to spread like wildfire.