They're said to be among the world's least wanted and most oppressed people - Burma's ethnic Rohingya community.
They face persecution not only in their home country, but also in some of the countries to which they flee - including Bangladesh. The Rohingyas are Muslims from north-west Burma who speak a dialect of Bengali. Burma denies them citizenship and refuses to let them own land.
At least 200,000 now live as illegal immigrants in Bangaldesh, without rights to employment, health care or education. Some 30,000 have been registered as refugees by the UN, but the rest mostly live in dreadful conditions on the edge of Bangladeshi villages or in squatter camps.
Mishal Husain spoke to Saiful Huq Omi, an award winning Bangladeshi photographer who's documented the plight of Rohingya refugees.