Do not cross: Crime scene tape blocks access to part of Lac-Mégantic, Quebec, where a train derailed and exploded on Saturday. Stephen Morrison /EPA/LANDOV hide caption

itoggle caption Stephen Morrison /EPA/LANDOV

A view from above showing some of the destruction in Lac-Mégantic, Quebec, after Saturday's train derailment, explosions and the fires that followed. Mathieu Belanger /Reuters /Landov hide caption

itoggle caption Mathieu Belanger /Reuters /Landov