WASHINGTON, D.C. (WWBT) - A vendor truck fire prompted a lockdown at the White House on Saturday.
The president and his family were about to board Marine One when there was a "loud noise" heard in the area. The family has left the White House by motorcade.
Video from a witness shows heavy smoke in the area, reportedly from a food vendor truck.
Click here for the video: http://youtu.be/QA4d9KjIcZE