National Security Adviser Thaung Tun said in a briefing to foreign diplomats and representatives of UN agencies that the UN Human Rights Council's recent decision failed to recognise Myanmar's efforts to deal with the situation and address its root causes.
Soldiers and police launched aggressive counter- insurgency operations in Rakhine in October after shadowy insurgents killed nine border guards. Government forces were accused of perpetrating rape, torture and other abuses against residents of the Muslim Rohingya minority during their sweeps.
Rights group said the recent army crackdown included the burning down of more than 1,000 homes, according to high- resolution satellite images, and the killing of an unknown number of civilians, perhaps in the hundreds. More than 70,000 Rohingya villagers fled across the border to Bangladesh and another 20,000 were internally displaced.
The situation has led advocates for the Rohingya to accuse the government of ethnic cleansing.
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"We look forward to the understanding and constructive support of the international community in our endeavour to build peace, justice and development for all in Rakhine," he said.
Myanmar's government has appointed several teams to look into Rakhine's problems, but rights groups say they are not credible because their members are not independent.
Thaung Tun, however, said the government's efforts were adequate. "Where there is clear evidence of wrongdoing, we will take firm action in accordance with the law," he said.