The incident that happened on Monday in Washington’s L’Enfant Plaza station, city officials say, was an electrical malfunction that led to one person dead and more than 80 hospitalized.
On Thursday, Mayor Muriel Bowser was vague answering a question about the response time.
D.C. train service snarled after smoke fills metro station, kills 1
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But CNN has learned the National Transportation Safety Board will be holding a closed door briefing on Capitol Hill next week regarding the metro incident, after lawmakers demanded more information be released.
Sen. Mark Warner, D-Virginia, released a statement saying, “Metro passengers deserve to know as soon as possible about Metro’s safety protocols for this type of incident, and those answers should be provided right away.”
