Authorities say an Amtrak train and a tractor-trailer have collided, leading to a diesel fuel spill and delays on all rail traffic.
Montgomery County Fire and Rescue Service spokesman Daniel Ogren said on his Twitter page both the train and truck spilled diesel fuel, and that there was a "significant" loss of diesel fuel from the front of the train.
The crash involved a Chicago-bound Amtrak train and a truck from the Cirque Paranormal, which has performances in Gaithersburg beginning Nov. 8.
Fire officials said the truck was on the tracks when it came into contact with the train.
There was no report of injuries.
Ogren said Amtrak, MARC and CSX traffic has been shut down and delays in the area can be expected.