A government official said the situation was tense, but denied any deaths.
Myanmar, a predominantly Buddhist nation of 60 million people, has been grappling with sectarian violence for nearly two years. More than 240 people have been killed and another 140,000, mostly Muslims, forced to flee their homes.
Chris Lewa of the Arakan Project, an advocacy group that has been documenting abuses against members of the Rohinyga Muslim minority for more than a decade, said the violence occurred Tuesday in northern Rakhine state.