The 2013 Lac-Mégantic train derailment occurred on July 6, when a freight train carrying crude oil derailed in the town of Lac-Mégantic, Quebec, Canada. The train, which had been left unattended, rolled downhill and crashed, leading to a series of explosions and fires that devastated the town center. The disaster resulted in the deaths of 47 people and caused significant damage to buildings and infrastructure. It also raised concerns about the safety of transporting crude oil by rail and prompted regulatory changes in Canada and the United States to improve safety standards for freight trains.