A freight train carrying ethanol veered off its tracks and crashed on Friday, causing a fiery explosion and prompting a forced evacuation of Tiskilwa, Ill., a small town 100 miles west of Chicago. The Ottawa Fire Department said 26 cars from a 131-car freight train derailed en route to a corn-processing plant and at least six tanker cars burned. Witnesses reported hearing explosions and seeing giant flames from miles away. The evacuation was a precautionary measure, and no injuries have been reported. Officials are investigating the cause of the crash.