There was a fire Wednesday morning... “the conditions appear disturbingly similar to those in the L’Enfant incident of a year ago,” [when one person died and scores were injured]
http://www.wmata.com/about_metro/news/PressReleaseDetail.cfm?ReleaseID=6082
Correction...It was Monday morning that there was a fire
“The unprecedented action follows an early morning electrical fire involving a cable in the tunnel outside McPherson Square Station yesterday. There were no injuries; however, service was disrupted along the Blue, Orange and Silver lines throughout the day.” March 15, 2016