"The findings of MSF's surveys show that the Rohingya have been targeted, and are the clearest indication yet of the widespread violence that started on August 25 when the Myanmar military, police and local militias launched the latest "clearance operations" in Rakhine in response to attacks by the Arakan Rohingya Salvation Army", it said.
Out of the children below age 5 who were killed, 59 percent were shot, 15 percent were burnt to death in their home, 7 percent were beaten to death and 2 percent died in landmine blasts, according to the survey.
Bangladeshi officials have known the truth of the matter all this time, and have been striving tirelessly to persuade the United Nations to take tangible measures that go beyond issuing strongly worded resolutions for Myanmar to end the violence.
"I think it's important that the worldwide community does everything possible" to win the release of the journalists and also to end the dramatic human rights violations that have caused many to flee their country, he said Thursday.
Both the United Nations and United States have branded the scale of violence in Rakhine as "ethnic cleansing".
The new findings by Doctors Without Borders reveal more than 647,000 Rohingya have fled from Myanmar into Bangladesh as police and local militias launch "clearance operations" allegedly in response to attacks by the Arakan Rohingya Salvation Army.
Myanmar's army has claimed 400 have died since the start of the crisis. "With very few independent aid groups able to access Maungdaw district in Rakhine, we fear for the fate of Rohingya people who are still there".
MSF said the numbers of deaths are likely to be an underestimation "as we have not surveyed all refugee resettlements in Bangladesh because the surveys don't account for the families who never made it out of Burma".
They have been stripped of their citizenship, denied nearly all rights, and labelled "stateless".
Gunshots were the cause of death in most cases.
MSF said the agreement was "premature" pointing out that "currently people are still fleeing" and reports of violence have come even in recent weeks.
In November, Bangladesh signed a deal with Myanmar to return hundreds of thousands of the refugees.
The Rohingya are a stateless Muslim minority who have long experienced persecution in Myanmar.