A boat packed with Rohingya refugees fleeing violence in Myanmar's Rakhine state capsized late Sunday night in a river near the coast of Bangladesh, leaving at least two people dead and scores missing, officials said.

Coast guard and border guard officials said the boat was overloaded with about 100 people when it sank in the mouth of the Naf river that divides Myanmar from its South Asian neighbour Bangladesh.

"It capsized near Galachar (coastal village in Bangladesh) with nearly 100 people. We recovered two dead bodies. Two people were rescued alive," area Coast Guard commander Alauddin Nayan told AFP.