Police are conducting a death investigation after a person died on a Yellow Line train Tuesday evening.
Arlington County medics were dispatched to the Pentagon Metro station around 4:15 p.m. for a report of a person suffering a medical emergency on a Yellow Line train bound for Huntington. The individual was found unresponsive and in cardiac arrest, and was declared dead shortly after medics arrived on scene, according to Arlington County Fire Department spokesman Capt. Justin Tirelli.