Eighteen cars were left twisted and toppled after a train derailed south of Austin Tuesday. The cars were empty and a Soo Line spokesman said the cause of the derailment is under investigation. A train derailment south of Austin near Lyle Tuesday left 18 Soo Line Railroad cars twisted and toppled. The derailment occurred at 4:45 a.m. on the Soo Line Railroad tracks that run parallel to U.S. 218 near Mower 5. A Soo Line spokesman said there were 22 loaded cars and 96 empty cars in the train. The 18 that derailed were empty. The cars were southbound from Austin to Mason City, according to a spokesman in the Minneapolis office of Soo Line. Two of the cars were extensively damaged and probably will not be repaired, a spokesman with the Soo Line office in Mason City said. The cars came to a stop about 200 feet from the home of Margaret and Duane Regenscheid, but there was no damage to the home and no injuries were reported. Margaret Regenscheid said she wasn't aware of the derailment until hearing about it at work that morning. The cars were cleared from the area Tuesday and repairs to the track were completed at 1 a.m. today. No dollar estimate on damages to the cars was available this morning. The cause of the derailment is being investigated.