The UN said it had received "credible information" of a series of attacks in a remote area of Rakhine earlier this month, in the latest statement of international concern over the fresh bout of unrest in the volatile region.
Myanmar, whose sweeping political reforms have been overshadowed by religious bloodshed, has vociferously denied civilians were killed but said a police officer was presumed dead after a clash.
"I deplore the loss of life in (the village of) Du Chee Yar Tan and call on the authorities to carry out a full, prompt and impartial investigation and ensure that victims and their families receive justice," the UN's human rights chief Navi Pillay said in the statement late Thursday.
The UN said it had information that eight Rohingya Muslim men were attacked and killed in the village, near the border with Bangladesh, by local Rakhine Buddhists on January 9.
AFP