ABUJA, Nigeria (AP) — Gunmen killed at least 17 farmers and wounded at least 13 others as they worked in their fields in northwestern Nigeria, a local official and a resident said. The attack occurred on Friday in the town of Goron Namaye in the Maradun area of Zamfara state. No group has claimed responsibility but attacks by armed gangs have increased in recent months. “The farmers were working on their lands when the bandits suddenly attacked and killed 17 of them,” Shehu Musa, a resident of