D.C. Metro Trains Collide

Two metro trains have crashed on the Washington D.C. red line, killing at least six and injuring dozens more. According to Metro officials, one of the trains collided with a staionary train on the same track just before 5 p.m. A D.C. Fire and EMS spokesman said "one train was on top of the other train," adding that the situation was "developing into a mass casualty event." Over 50 people were treated for injuries, and emergency workers were extricating people from the wreckage for over three hours. Metro officials say they won't know the cause of the crash for several days.