Precautionary evacuations are underway in the Shawsville area of Montgomery County after several cars of a Norfolk Southern freight train derailed. The train contains some ethanol containers, but they are believed to be empty, and there is no indication that there are any chemical leaks. Hazardous materials teams are assessing the scene. At least two roads in the area are now blocked to traffic. The derailment cleanup is expected to last until the early morning hours on Saturday.