Despite years of persecution and government restrictions, the Rohingya largely eschewed violence.
The UN documented mass gang rape, killings, including that of babies and children, brutal beatings and disappearances. "Reports of them opening fire on civilians is certainly plausible".
On Thursday a panel led by former United Nations chief Kofi Annan which she commissioned released a report on how peace can be brought back to Rakhine.
"Her office is generating anti-Rohingya, anti-aid worker propaganda (and) fueling tensions in the country".
In May, Pope Francis and Burmese state counsellor Aung San Suu Kyi met and agreed to start a diplomatic relationship. This has repeatedly been affirmed by the Supreme Court, most particularly in National Human Rights Commission v State of Arunachal Pradesh.
"We appeal the global community to exercise "the Responsibility to Protect" as the Rohingya civilian population plunges into another episode of widespread "crimes against humanity" under the hands of Myanmar Armed Forces", said the body in the statement.
Late on Sunday, nine Rohingya men have been admitted to the state-run hospital in the southeastern city of Chittagong, said police. "In addition, the deportation of Rohingya Muslims back to Myanmar would also be a violation of Article 7 of the ICCPR in as much as it prohibits states to extradite, deport, expel or otherwise remove a person from their territory, where there are substantial grounds for believing that there is a real risk of irreparable harm".
Despite decades of persecution, the Rohingya largely eschewed violence.
Mohammad Nur, a Rohingya leader at an unregistered camp in Bangladesh's Cox's Bazar district, told The Associated Press by phone that he had heard that some 100,000 Rohingya had gathered along the border to try to enter Bangladesh, but the number could not be confirmed. "We want to stay here or else we'll get killed".
The UNHCR has seen at least 3,000 new arrivals to their official camps in the last 72 hours, UNHCR Bangladesh's Joseph Surjamoni said.
The witness, who asked to be identified by her nickname, Emmar, because of fear of retribution, said villagers fled in many directions but mostly to a nearby mountain range. He added that the nature of the movement of people is "fluid at the moment".
The death toll from ongoing clashes between Myanmar's troops and the so-called advocates of the persecuted Rohingya Muslims has reached almost 100, as thousands of desperate Muslims recently entered the neighboring Bangladesh, fleeing from intensified crackdown on the minority by Buddhist mobs and security forces over recent attacks on police outposts.
However, "the Bangladeshi authorities need to provide protection - they have a legal obligation not to send people back", he said.
"Bangladesh gave the proposal to dispel Myanmar's security concerns", the spokesman said.