The Lac-Mégantic train derailment occurred on July 6, 2013, in the town of Lac-Mégantic, Quebec, Canada. A freight train carrying crude oil derailed and exploded, resulting in a massive fire and the destruction of a significant portion of the town. The incident led to the deaths of 47 people and caused extensive damage to homes and businesses. The disaster raised concerns about railway safety and the transportation of hazardous materials. Investigations revealed that the train's brakes had failed, and the incident prompted changes in regulations regarding the transport of dangerous goods by rail.