CNN Early Start With Christine Romans June 4, 2024 10:12:00
Car number 23 derailed. >> reporter: the ntsb saying it was an overheated wheel bearing on a single rail car that eventually set off a sensor alerting the conductor to stop the train. >> we have no evidence that the crew did anything wrong. >> reporter: in all, 38 cars derailed including several transporting chemicals. surveillance video shows sparks and a bright light coming from underneath the train car in salem, ohio about 20 3450i8s f miles from east palestine. increased heating was detected, but it wasn't until a detector indicated the heating that the conductor hit the brakes to stop the...