Myanmar’s Rohingya may be victims of crimes against humanity, the UN’s rights agency said Tuesday, as former UN chief Kofi Annan arrived in the country for a visit that will include a trip to northern Rakhine. The army has carried out a bloody crackdown in Rakhine, and thousands of the Muslim minority have flooded over the border into Bangladesh this month, making horrifying claims of gang rape, torture and murder at the hands of security forces. Some 30,000 have fled their homes and analysis of satellite images by Human Rights Watch found hundreds of buildings in Rohingya villages have been razed. Myanmar has denied allegations of abuse, saying the army is hunting “terrorists” behind raids on police posts last month. The government has lashed out at media reports of rapes and killings, and lodged a protest over a UN official in Bangladesh who said the state was carrying out “ethnic cleansing” of Rohingya. Foreign journalists and independent investigators have been banned from accessing the area to probe the claims. On Tuesday, the UN OHCHR said Myanmar’s treatment of the Rohingya could be tantamount to crimes against humanity, reiterating the findings of a June report.