An unexploded mortar shell, left from recent fighting between security forces and tribal militants loyal to the powerful al-Ahmar family, is seen on a road in the vicinity of government buildings in the Yemeni capital Sanaa on Jan. 17.

Military deminers dig to remove an unexploded mortar shell left from recent clashes between security forces and tribal militants loyal to the powerful al-Ahmar family in the Yemeni capital Sanaa January 17.