Tens of thousands of Muslim minority Rohingya are feared to be caught in the fighting happening in western Myanmar, as a powerful armed ethnic group bears down on junta positions in a coastal town on the country's border with Bangladesh.

The Arakan Army (AA), which is fighting for autonomy for Myanmar's Rakhine region, said late on Sunday that residents of Maungdaw town, inhabited primarily by the Rohingya, should leave by 9 p.m. ahead of a planned offensive on the settlement.

The AA's attack on Maungdaw is the latest in a monthslong rebel onslaught against the Myanmar junta, which took power in a February 2021 coup, and now finds itself in an increasingly weakened position across large parts of the country.