China has said it backs Burma's efforts to "safeguard stability" as pressure mounts to end violence which has sent more than 300,000 Rohingya Muslims fleeing to Bangladesh. Around 370,000 Rohingya refugees have arrived in Bangladesh since 25 August, up from the previous estimate of 313,000, the International Organisation for Migration has said. The top UN human rights official has denounced Burma, also known as Myanmar, for conducting a "cruel military operation" against the Rohingya, branding it "a textbook example of ethnic cleansing".