Myanmar is conducting a "military land grab" on land in Rakhine state where Rohingya once lived, a new report from Amnesty International alleges, BBC reports.
Citing satellite images and witnesses, the rights group says villages have been bulldozed to make way for new infrastructure since January.
An Amnesty spokesperson said this "alarming" militarisation was removing evidence of crimes against Rohingya.
The government of Myanmar has yet to respond to the report.
It has previously asked for "clear evidence" to support allegations from the UN that it may have carried out "acts of genocide" against the Rohingya.
Amnesty says that while the picture its new report presents "is only partial, the situation raises urgent concerns about its implications for the future of the hundreds of thousands of Rohingya... as well as the tens of thousands who continue to live in the region".