A 600-strong crowd in Sittwe called for the Burmese government to refuse to repatriate the Muslim refugees who fled recently to Bangladesh.
Around 100 Buddhist monks and nationalists in Burma staged a protest against Thailand on Friday, denouncing the government of the neighbouring country for its actions against a temple that has defied orders to hand over a wanted monk.
The six Burmese and three foreign commissioners, including Kofi Annan, toured the camps for displaced people and met members of both communities.
A personal feud has sparked another wave of communal tensions in Burma, this time in Hlegu Township, 40km northeast of Rangoon.
An Indonesian court jails 14 Muslim Rohingya men from Burma for nine months each for bludgeoning eight Buddhists from their country to death in an Indonesian detention centre.
Buddhist monks led more than 5,000 residents on a demonstration through the streets of Arakan state capital Sittwe on Friday morning to protest the arrival of a delegation from the Organisation of Islamic Cooperation.