CAIRO—The death toll from tribal violence between Arabs and non-Arabs in Sudan’s West Darfur province climbed to at least 83, including women and children, a doctor’s union and aid worker said, as sporadic violence continued Sunday. The ruling sovereign council met Sunday and said security forces would be deployed to the area. The deadly clashes grew out of a fistfight Friday between two people in a camp for displaced people in Genena, the provincial capital. An Arab man was stabbed to death and his family, from the Arab Rizeigat tribe, attacked the people in the Krinding camp and other areas Saturday. Among the dead was a U.S. citizen. Saeed Baraka, 36, from Atlanta, had arrived in Sudan less than two months ago to visit his family in Darfur, his wife, Safiya Mohammed, told The Associated Press over the phone. The father of three children rushed to relieve a neighbor amid …