Since Aug. 25, 2017, more than 750,000 refugees, mostly children, and women, have fled Myanmar and crossed into Bangladesh after Myanmar forces launched a crackdown on the minority Muslim community, according to rights groups.

The interim report is based on more than 600 interviews with human rights abuse victims and witnesses, which were carried out in Bangladesh, Malaysia and Thailand.

"Whether or not we consider that the crimes committed amount to crimes against humanity or genocide, this should not delay our resolve to act and to act immediately".

The report expressed concern over a spike in reported human rights violations in the region that have resulted in significant displacement of population, further exacerbating a "longstanding humanitarian crisis". Amnesty International this week said Myanmar was building security installations on top of razed Rohingya villages, casting further doubt on plans to repatriate hundreds of thousands of refugees.

The social media giant has faced mounting pressure to delete inflammatory posts aimed at the Rohingya, a persecuted Muslim minority that the United Nations says are victims of army-led ethnic cleansing.

Similarly, UN Myanmar investigator Yanghee Lee said Facebook's role in disseminating information to the public plays a huge part of the public's life, which has affected their views on the genocide that is taking place.

But Myanmar's government rejected the legitimacy of the reports.

During a press conference the chairman of the mission, Marzuki Darusman, said that social media had "substantively contributed to the level of acrimony" amongst the wider public, against Rohingya Muslims. Beyond its global effort to bolster its content moderation by hiring more reviewers, it says it routinely removes hate speech content in the country, including Wirathu's account (although this only happened in late February), and that it has developed and promoted localized guidelines for using Facebook. "We have been working with the United Nations and other countries and welcome them to to work with us on Myanmar's national reconciliation, peace, and democracy transition based on the on-the-ground situation". "Although there are accusations, we would like to have clear evidence".

Zaw Htay also said that Lee, who was nominated as special envoy on human rights by the Myanmar government and whose nomination was supported by other countries with the expectation of her demonstrating impartial cooperation, has made "biased, one-sided, and unfair accusations against Myanmar".

Lee said the platform had "turned into a beast". But she added: "Ultra-nationalist Buddhists have their own Facebooks and are really inciting a lot of violence and a lot of hatred against the Rohingya or other ethnic minorities ..."