Patten said sexual violence was “being commanded, orchestrated and perpetrated by the Armed Forces of Burma.” Burma's army released a report on Monday denying all allegations of rape and killings by security forces, days after replacing the general in charge of the operation that drove more than 600,000 Rohingya Muslims to flee to Bangladesh.
The first snake captured was nine feet long, and the group killed it instantly before skinning it.
The Burmese government has denied allegations of ethnic cleansing.
Human Rights Watch spoke to 52 Rohingya women and girls who fled to Bangladesh, 29 of whom said they had been raped.
Human Rights Watch have accused Burmese security forces of committing widespread rape against women and girls as part of a campaign of ethnic cleansing during the past three months against Rohingya Muslims in the country's Rakhine state.
The allegation in a report by the New York-based rights group echoes an accusation by Pramila Patten, the UN special envoy on sexual violence in conflict, earlier this week.