(HRW) – Dear Excellencies, We write to you regarding the deeply concerning situation in Myanmar, particularly in Rakhine State. Reports estimate that more than 270,000 Rohingyas have fled to Bangladesh following the outbreak of violence two weeks ago, and this figure is expected to significantly increase. Thousands of non-Muslim residents have also been internally displaced. Reports have also emerged of entire villages being burnt and hundreds killed. On 31 August, three UN Special Rapporteurs expressed concern citing credible reports of death to villagers resulting from security force attacks, and the use of helicopters and rocket propelled grenades on the population. On 5 September, speaking to reporters, the UN Secretary General warned of a risk of ethnic cleansing. Access to northern Rakhine State has been denied to independent observers and humanitarian aid agencies while media has been tightly controlled – leaving the territory under a virtual information blackout and exacerbating a humanitarian catastrophe. We call on the UN Human Rights Council to urgently act – by passing a resolution on Myanmar calling for an end to abuses against the population and ensuring immediate humanitarian access.