Baghdad, Iraq, Sept 6, SPA -- A car bomb exploded on the outskirts of Fallujah on Monday and there were reports of U.S.casualties, a U.S. military official said while speaking oncondition of anonymity. Further details were not immediately available. U.S. forces have not patrolled inside Fallujah sinceApril, when U.S. Marines ended a three-week siege andhanded over control of security to the Fallujah Brigade.--SPA1235 Local Time 0935 GMT www.spa.gov.sa/198544