The rivalry between President Mohamed Abdullahi Mohamed, popularly known as Farmaajo, and Prime Minister Mohamed Hussein Roble has raised concerns for the country's stability.
The long-brewing dispute escalated this week when Farmaajo suspended Roble's executive powers, a move the premier rejected as unlawful.
Somalia is due to vote for a president on October 10, but the leaders' spat threatens to imperil the repeatedly delayed poll and distract from efforts to confront a long-running Islamist insurgency.
