Clashes between government-allied armed groups rocked a coastal town in western Libya, trapping families inside their homes and forcing the closure of schools Saturday, officials said. At least one civilian was killed. The latest bout of violence in the chaos-stricken Mediterranean nation broke out early Saturday in the town of Zawiya, 40 kilometers (25 miles) west of the capital Tripoli, health officials said. The Health Ministry’s Ambulance and Emergency Services reported that at least one civilian was killed and at least 22 others were wounded in the clashes which were centered in the south…