Algerian troops killed three Muslim extremist gunmen and captured a fourth in an attack in western Algeria in which one soldier died, reports said Monday. The daily al-Khabar said the army conducted a search Sunday in the western province of Mediya, where they located a group of gunmen, killing three and capturing a fourth after he was injured. A soldier was also killed in the operation, which targeted gunmen from the Salafi Group for Daawa and Fighting, Algeria's most feared armed organization.