The Spuyten Duyvil train derailment occurred on December 1, 2013, when a Metro-North Railroad train derailed in the Spuyten Duyvil area of the Bronx, New York City. The train was traveling at a high speed as it approached a curve, leading to the accident. Four people lost their lives, and over 60 others were injured in the incident. Investigations revealed that the train's engineer had fallen asleep before the derailment. The National Transportation Safety Board (NTSB) conducted a thorough investigation, highlighting the importance of safety measures and alertness for train operators to prevent similar accidents in the future.