Witnesses say soldiers are looting and shooting for a second day at a major military barracks in Burkina Faso's second-largest city and have provoked demonstrations.
Witnesses say Bobo-Dioulasso residents torched cars and ransacked to protest the looting. The governor on Thursday instituted a dawn-to-dusk curfew.
The government said it would take measures to restore the state's authority, but gave no details.
The incidents are the latest in a string of episodes of unrest in the impoverished West African nation. Earlier this week, soldiers near the capital and in the north shot into the air.
The reports come just over a month after a mutiny that threatened President Blaise Compaore's 24-year rule. Compaore dissolved the government and removed the country's security chiefs but stayed in power.