Dark smoke was seen wafting over Route 7 near the Tysons Commerce Center office building (8219 Leesburg Pike) earlier this afternoon.
Alan Henney, a local crime and public safety watcher, reported hearing an “explosion [that] sounded like a transformer with fire” in the 8200 block of Leesburg Pike around 12:30 p.m. Photos and videos of the scene showed black smoke billowing up from near the office building, which is across the street from PetSmart.