Asir police are searching for an illegal Somali alien who shot and seriously injured a Yemeni man in a grazing area near Sabt Al-Alaya, Sunday. The victim was moved to the hospital in critical condition, police said. The Somali, a sheep herder, used a revolver to shoot at the Yemeni and another man who was walking with him, said Col. Abdullah Al-Qarni, Asir Police spokesman. Police patrols are combing nearby mountains, pastures and valleys in an attempt to apprehend the Somali and have arrested a large number of unidentified herders. The motive for the shooting is not yet clear. The police have issued directives to summon the Somali herder's employer who will be investigated for employing an illegal alien.