As guerrilla attacks mounted , efforts to replace the Ethiopians with an African Union-led peacekeeping mission faltered . NEW : Mayor blames Islamist fighters for blast ; Islamist fighters blame government . NEW : Women part of Alliance for the Re-Liberation of Somalia program in which they cleaned streets for food . Ethiopia the site of violence between Islamist troops and Ethiopian fighters . hundreds of thousands ministers resign Saturday , prime minister has refused to step down .
NEW : Mayor blames Islamist fighters for blast ; Islamist fighters blame government . NEW : Women part of Alliance for the Re-Liberation of Somalia program in which they cleaned streets for food . Ethiopia the site of violence between Islamist troops and Ethiopian fighters . hundreds of thousands ministers resign Saturday , prime minister has refused to step down .