New amateur video shows passengers to breathe inside Washington DC metro car that filled with smoke on Monday (January 12) afternoon. In the video, the train conductor can be heard telling passengers not to open the doors, otherwise the train would not bring them to the platform.

One woman died and at least two people were critically injured during the incident, officials said.

A total of 84 patients were transported to area hospitals, and scores more were evaluated at the scene, a District of Columbia Fire Department official said.

Richard Sarles, the general manager of the region's Metro system, told reporters one woman died and two people were critically injured in the incident at L'Enfant Plaza station that caused major disruptions on many of the system's subway lines.