Bagram, Afghanistan, July 26, SPA -- U.S. and Afghan troops firedwarning shots after more than 1,000 protesters threw stones at a U.S. military convoy and at the main U.S. base in Afghanistan to demand the release of eight villagers detained in a raid. Afghan troops used batons to beat back the protesters asthey tried to push down the base's outer gate, The Associated Press reported. It was not immediately clear if there were any casualties. Violence erupted after six U.S. military vehiclestraveling in a convoy tried to enter the base. Theprotesters threw stones at the vehicles before troopsinside the cars fired into the air. The vehicles then sped into the base and the demonstratorschased them, trying to push down a metal gate guarded byAfghan forces.--SPA1430 Local Time 1130 GMT www.spa.gov.sa/279272