Translucent smoke in DC's L'Fante metro station.............7th st.............Illuminati way............the Air and Space museum in on the East side and the Modern art museum the west side of 7th st........sw........which is where L'Fante metro station is..............named after the archectect credited for the street map of DC....

He described the smoke as "translucent."

Lesley Lopez, a metro rider who was there when the smoke broke out, said she "wasn't sure what was happening, and then I heard a voice say, 'Get out of the train station.'"

The longtime metro rider said, however, the evacuation was "poorly managed," and that she was "disturbed" by the fact she was given no evacuation instructions or indication of what had happened.

"It's disheartening because there did not appear to be an emergency plan," she said.

D.C. Mayor Muriel Bowser issued a statement following the incident thanking city first responders and offering her condolences to the family of the dead passenger.

Video from CNN affiliate WJLA showed emergency crews taking several people from the station on gurneys.

CNN's Catherine Shoichet, Janet DiGiacomo, Joe Johns and Eric Bradner contributed to this report.