KANO — Gunmen have killed a policeman and wounded another in a raid on a police station in a town in northern Nigeria's Bauchi state, a police officer said Sunday, the latest violence in the volatile region. The gunmen launched the attack late Saturday in the town of Itas, about 200 km (130 miles) from the state capital Bauchi, hurling explosives into the police station and opening fire on policemen, leading to an hour-long shootout. — AP