SILVER SPRING, Md. (WUSA9) -- Metro says they're still investigating what caused the fire underneath one of its rail cars Tuesday night at the Silver Spring Metro Station.
It was nightmarish commute on the Red line during the height of rush hour in Silver Spring.
24 hours later and Metro still doesn't know exactly what caused the fire that brought the red line to a halt.
A Metro investigation team says they've eliminated the track as a contributing factor and narrowed it down to the rail car.
Smoke, flames and distinct flashes are seen on youtube video. Metro now says there were three explosions.
Tristan Smith was just getting off work around 6 Thursday night.
"I looked outside and saw the flames. I had to walk a different route. I have to reassess, I don't take the red line anymore."
Councilwoman and Metro Board Member Muriel Bowser says they'll get to the bottom of what happened.