Togo is due to hold legislative and municipal elections in October. But Togolese opposition parties have expressed disagreement about a new formula for the redrawing of boundaries for constituencies.

Adrien Kpogo, one of the protest organizers, says there must be consensus or "we will chase them out of power through a revolution."

President Faure Gnassingbe seized power in 2005 after the death of his father, a former dictator. The country's 2010 election handed victory once more to the same family that has ruled Togo for nearly half a century. AP