At least four unarmed civilians have been killed by NATO troops in Afghanistan. The victims were traveling in a vehicle in eastern Khost province Monday when a NATO convoy opened fire. The dead were identified as a twelve-year-old boy, an Afghan police officer, and two shopkeepers from a local bazaar. In a statement, the US-led NATO force said the victims were two “known insurgents” and their “associates” but didn’t offer proof and also didn’t dispute Afghan claims they were unarmed. The shooting comes one week after US troops killed five Afghan civilians and wounded eighteen others after firing on a passenger bus near Kandahar.