Rohingya Muslims in Myanmar are facing a “catastrophic” humanitarian situation, UN Secretary General Antonio Guterres says.
Mr Guterres said alleged attacks by security forces on Rohingya villagers were completely unacceptable, and urged them to suspend military action.
The army says it is fighting militants and denies targeting civilians.
Almost 380,000 Rohingyas have fled to Bangladesh since violence began last month. Whole villages have burned down.