Law enforcement officers who pulled a driver over for a traffic violation in Mississippi allegedly discovered about 37 pounds of methamphetamine hidden inside a spare tire stashed in the vehicle, the AP reports. The Scott County Sheriff’s Office and the Flowood Police Department stopped a pickup truck along an interstate near Flowood early this month after spotting it driving in a "careless manner," according to the agencies. An officer conducting the stop discovered a tire in the bed of the truck, and inside it, an assisting deputy found 37.5 pounds of methamphetamine worth an estimated street value of $350,000, WLBT reports. The driver was charged with aggravated trafficking in methamphetamine, Scott County Sheriff Mike Lee said. (More Mississippi stories.)