A police officer fires a tear-gas cannister at protesters during clashes in the Nyakabiga neighbourhood of Bujumbura.

Demonstrators throw rocks at police officers who try to clear barricades set-up in the Nyakabiga neighbourhood of Bujumbura.

A policeman aims a gun armed with a tear-gas cannister at protesters during clashes in the Nyakabiga neighbourhood of Bujumbura.

Members of the army try to calm down protestors during clashes with police officers in the Nyakabiga neighbourhood of Bujumbura.