Humanitarian conditions across Bangladesh refugee camps hosting people from Rohingya have raised alarm bells, according to UN officials.

People fleeing the violence of a brutal Myanmar military crackdown in Rohingya are set to face Bangladesh’s monsoon season, officials said the cramped camps may see a huge number of casualties from landslides and diseases.

More than 600,000 refugees were forced to flee Rohingya from a systematic campaign of mass killings, rape and arson, a situation described by the UN as a textbook example of ethnic cleansing.