At about 6:30 a.m., on February 18, 1969, Chicago, Burlington, and Quincy Train No. 64 derailed the 72nd to the 90th cars, inclusive, at a turnout located on the spiral of a 2° curve as the train was entering Crete, Nebraska, at a speed of about 52 miles per hour. The derailed cars struck standing cars on a siding south of the main track and the cars of train 824 standing on a track north of the main track. A tank car in train 824 was completely fractured on impact with the derailed cars which released the lading of 29,200 gallons of anhydrous ammonia into the atmosphere. A gas cloud was formed which blanketed the surrounding area for a considerable time due to the weather conditions. Three trespassers riding on train 64 were killed as a result of the derailment and six people were killed and 53 were injured as a result of exposure to the cloud of ammonia.