Amnesty International and 34 other humanitarian groups on Monday called for the UN Human Rights Council to hold a special session on the Rakhine crisis in Myanmar.
We "strongly support calls for a UN Human Rights Council special session on the deteriorating human rights situation in Myanmar and urge your delegations to support holding such a session as soon as possible", an open letter addressed to the council said.
"In light of serious reports of human rights violations... we believe that a special session is imperative to launch decisive action and ensure international scrutiny and monitoring of the situation."
The groups said the council should adopt a resolution that would call on the Myanmar government to "immediately cease all human rights violations, including crimes against humanity" and allow human rights groups "full and unfettered access to all parts of the country".
The 47-member council rarely convenes for a special session. In all, the UN group has held 26 since its inception in 2006.
A special session may be held at the request of at least a third of the member states, or 16 countries.
Earlier this month the UN Security Council dropped plans to adopt a resolution demanding an end to the violence in Myanmar in the face of strong opposition from China.