Myanmar's government has built two reception camps and a transition camp for Rohingya refugees in northern Rakhine.
The "frenzied" scale of unspeakable violence against the minority Muslim Rohingya community in Myanmar has shifted to a "lower intensity campaign of terror and forced starvation", seemingly meant to drive the remaining Rohingyas from their homeland, a senior United Nations human rights official has warned.
The foreign ministry "summoned" Myanmar's envoy and conveyed the country's "concerns" over the "military build-up" amid rising tensions following the influx of almost 700,000 Rohingya refugees from Myanmar.
Almost 700,000 Rohingya have fled to neighboring Bangladesh since late August to escape military and civilian reprisals in the state.
A Rakhine leader facing treason charges linked to deadly riots appeared in a Myanmar court on Wednesday, a case that has aggravated ethnic tensions in Rakhine State.
Bangladesh and Burma made an agreement last November to repatriate the refugees, a process supposed to be completed within two years which was recently postponed.
Myanmar does not recognize Rohingya as its citizens, arguing they are illegal immigrants from neighbouring Bangladesh, which has led to continued discrimination against the Rohingya community as well as restrictions on their freedom of movement.
Myanmar's military claims its crackdown on Rohingya villages is aimed at eradicating "terrorists", who allegedly attacked border police posts in August 2017.
Rights groups and the United Nations have warned that conditions for their return are not close to being in place.
"Safe, dignified, and sustainable returns are of course impossible under current conditions".
James Gomez, Amnesty International's director for Southeast Asia and the Pacific, said the UN's new findings "sadly echo our own".
The U.N. refugee agency, UNHCR, has expressed its concern over the situation.
Doctors Without Borders (MSF) has estimated that at least 6,700 Rohingya were killed in the first month of the crackdown alone. "We've asked Myanmar for humanitarian access in order to help people like them and others affected by the recent violence".
"The conversation now must focus on stopping the violence in Rakhine state, ensuring accountability for the perpetrators, and the need for Myanmar to create conditions for return", said Gilmour.