Myanmar’s “ethnic cleansing” of Rohingya Muslims is continuing, a senior U.N. human rights official said on Tuesday, more than six months after insurgent attacks sparked a security response that has driven nearly 700,000 people into Bangladesh. These refugees are at risk of death or serious injury when the seasonal monsoon rains fall on their camps in Bangladesh. Aid agencies say the areas where the Rohingya are staying are completely inadequate and the refugees need urgent rehousing. Existing basic services for refugees and host communities have been overwhelmed due to the massive inflow of population. The high population density in the settlements has increased the risk of disease outbreaks, according to the UN’s Children Fund.